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    Class 0613DC

    Masterpact NW DC CircuitBreakers

    CONTENTS

    Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page

    Contents Line 1 . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pagex

    Contents Line 2 . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page xContents Line 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page x

    Catalog

    0613CT0501R1/07

    2007

    Building a New Electric World

    CONTENTS

    Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page

    General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

    MicrologicDC1.0 Trip Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 35Trip Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 54Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 60

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    Masterpact NW DC Circuit BreakersGeneral Information

    Section 1General Information

    Introduction

    Masterpact NW Circuit Breakers are designed to protect electrical systems from damage caused by

    short circuits. All Masterpact circuit breakers are designed to open and close a circuit manually, and toopen the circuit automatically at a predetermined overcurrent setting.

    Selection of a dc circuit breaker is based on the type of dc system, the rated voltage, and the maximumshort-circuit current at the point of installation. ULListed circuit breakers are for use on ungroundedsystems rated 500 Vdc (600 Vdc unloaded) or less. IEC Rated circuit breakers are for use onungrounded, grounded middle point, or grounded negative systems.

    Codes and Standards

    Masterpact circuit breakers are manufactured and tested in accordance with the following standards:

    Circuit breakers should be applied according to guidelines detailed in the National Electrical Code(NEC) and other local wiring codes.

    Masterpact circuit breakers are available in Square D, Merlin Gerin, or Federal Pioneerbrands.

    UL File Numbers:

    Masterpact NW: E63335, Vol. 4, Sec. 1

    Features and Benefits

    100% Rated Circuit Breaker: Masterpact circuit breakers are designed for continuous operation at100% of their current rating.

    True Two-Step Stored Energy Mechanism: Masterpact circuit breakers are operated via a stored-energy mechanism which can be manually or motor charged. The closing time is less than five cycles.Closing and opening operations can be initiated by remote control or by push buttons on the circuitbreaker front cover. An OCO cycle is possible without recharging.

    Drawout or Fixed Mount, 3-Pole (3P) or 4-Pole (4P) Construction: UL Listed (3P only) and IECRated (3P or 4P) Masterpact circuit breakers are available in drawout or fixed mounts.

    Field-Installable Accessories: Most accessories are field installable with only the aid of a screwdriverand without adjusting the circuit breaker. The uniform design of the circuit breaker line allows mostaccessories to be common for the whole line.

    Reinforced Insulation: Two insulation barriers separate the circuit breaker front from the current path.

    Isolation Function by Positive Indication of Contact Status: The mechanical indicator is trulyrepresentative of the status of all the main contacts.

    Segregated Compartment: Once the accessory cover has been removed to provide access to theaccessory compartment, the main contacts remain fully isolated. Furthermore, interphase partitioningallows full insulation between each pole even if the accessory cover has been removed.

    Front Connection of Secondary Circuits: All accessory terminals (ring terminals are available as anoption) are located on a connecting block which is accessible from the front in the connected, test anddisconnected positions. This is particularly useful for field inspection and modification.

    Insulated Case Circuit Breaker IECRated Circuit Breaker IEC Extreme Atmospheric Conditions

    UL 489 (UL Listed to Supplement SC)

    NEMA AB1

    CSA C22.2 No. 5-02

    IEC 60947-2

    IEC 68-2-1: Dry cold at 55CIEC 68-2-2: Dry heat at +85C

    IEC 68-2-30: Damp heat (temp. +55C, rel. humidity 95%)

    IEC 68-2-52 Level 2: Salt mist

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    Masterpact NW DC Circuit BreakersGeneral Information

    411/2007 2007 Schneider Electric All Rights Reserved

    Anti-Pumping Feature: All Masterpact NW circuit breakers are designed with an anti-pumping featurethat causes an opening order to always takes priority over a closing order. Specifically, if opening andclosing orders occur simultaneously, the charged mechanism discharges without any movement of themain contacts keeping the circuit breaker in the open (OFF) position.

    In the event that opening and closing orders are simultaneously maintained, the standard mechanismprovides an anti-pumping function which continues to keep the main contacts in the open position.

    In addition, after fault tripping or opening the circuit breaker intentionally (using the manual or electricalcontrols and with the closing coil continuously energized) the circuit breaker cannot be closed until thepower supply to the closing coil is discontinued and then reactivated.

    NOTE: When the automatic reset after fault trip (RAR) option is installed, the automatic control systemmust take into account the information supplied by the circuit breaker before issuing a new closingorder or before blocking the circuit breaker in the open position.

    Disconnection Through the Front Door: The racking handle and racking mechanism are accessiblethrough the front door cutout. Disconnecting the circuit breaker is possible without opening the doorand exposing live parts.

    Drawout Mechanism: The drawout assembly mechanism allows the circuit breaker to be racked infour positions (connected, test, disconnected, or withdrawn), as shown in the figure below.

    NOTE: For UL circuit breakers, the clusters are mounted on the circuit breaker; for IEC circuitbreakers, the clusters are mounted on the cradle.

    Figure 1: Racking Handle and Mechanism

    Figure 2: Racking Positions

    06133341

    T TEST06133339

    0613383

    2

    DisconnectedPosition

    Closing and Opening Push Buttons

    Racking Handle Storage Space

    Racking Handle

    Racking Mechanism

    Door Escutcheon

    T TEST TESTT

    T06133339

    06133830

    Connected Position

    Disconnected Position Withdrawn Position

    Test Position

    SecondaryContacts

    Stabs (IEC)Clusters (UL/ANSI)

    Clusters (IEC)Stabs (UL/ANSI)

    TEST

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    Masterpact NW DC Circuit BreakersGeneral Information

    Reduced Maintenance: Under normal operating conditions, the circuitbreaker does not require maintenance. However, if maintenance orinspection is necessary, the arc chambers are easily removed so you mayvisually inspect the contacts and wear indicator groove (see the figurebelow for how wear is indicated). The operation counter can also indicatewhen inspections and possible maintenance should be done.

    Operating Conditions

    Masterpact circuit breakers are suited for use:

    At ambient temperatures between -22F (-30C) and 140F (60C)

    At altitudes +13,000 ft. (3900 m)

    Masterpact circuit breakers have been tested for operation in industrial atmospheres. It isrecommended that the equipment be cooled or heated to the proper operating temperature and keptfree of excessive vibration and dust. Operation at temperatures above 104F (40C) may requirederating or overbussing the circuit breaker. See the appropriate instruction bulletin and page 11of thiscatalog for additional information.

    Masterpact circuit breakers meet IEC 68-2-6 Standards for vibration.

    2 to 13.2 Hz and amplitude 0.039 in. (1 mm)

    13.2 to 100 Hz constant acceleration 0.024 oz. (0.7 g.)

    The materials used in Masterpact NW circuit breakers will not support the growth of fungus and mold.

    Masterpact circuit breakers have been tested to the following:

    IEC 68-2-30 Damp heat (temperature +55C and relative humidity of 95%) IEC 68-2-52 level 2 salt mist

    Storage Temperature

    Circuit breakers with trip units without LCD displays may be stored in the original packaging attemperatures between -58F (-50C) and 185F (85C). For circuit breakers with trip units with LCDdisplays, this range is -40F (-40C) to 185F (85C).

    Figure 3: Contact Wear Indicators

    06133470

    Arc Chamber

    06133185a

    Wear Indicator Groove

    Good

    ContactsWorn

    Contacts

    Wear Indicator Groove

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    Masterpact NW DC Circuit BreakersGeneral Information

    Masterpact NW Circuit Breaker Design

    NOTE: For UL Listed circuit breakers, the clusters are mounted on the circuit breaker; for IEC Ratedcircuit breakers, the clusters are mounted on the cradle.

    RESET

    Shunt Trip (MX2) orUndervoltageTrip Device (MN)

    Auxiliary ControlConnection

    Trip Unit Connection toOvercurrent Trip Switch

    Cradle Rejection Kit

    Cluster

    Overcurrent Trip Switch (SDE2)or Electric Reset

    Overcurrent TripSwitch (SDE1)

    Mounting Plate forFixed Circuit Breaker

    Lifting Tab

    Trip Unit

    Circuit BreakerCommunication Module

    Key Interlock

    Padlock Attachment

    Push-to-reseton Fault Trip

    Open/CloseIndicator

    Charged/DischargedIndicator

    Faceplate

    Operation Counter

    Opening Push Button

    Closing Push Button

    Spring-charging Motor (MCH)

    Charging Handle

    Ready-to-close Contact (PF)

    Shunt Close (XF)

    Block of Four Form CAuxiliary Contacts (OF)

    Two Blocks of Four Additional Switches (OF) orCombined "Connected, Closed" Switches (EF)

    Auxiliary Contact Connection

    Shunt Trip (MX1)

    Arc Chamber

    Open/Close PushButton Cover(lockable with padlock)Electrical Close

    Push Button (BPFE)

    Cluster (UL)Primary Stab(IEC)

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    Masterpact NW DC Circuit BreakersGeneral Information

    711/2007 2007 Schneider Electric All Rights Reserved

    Masterpact NW Cradle Design

    Pull-Out Handgrip

    Primary Stabs (UL)Clusters (IEC)

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    Masterpact NW DC Circuit BreakersGeneral Information

    DC Systems

    Selection of a dc circuit breaker is based on the type of dc system, the rated voltage, and the maximumshort-circuit current at the point of installation.

    The three types of dc systems are:

    Table 1: DC Systems

    Distribution System Faults Fault Comments Worst Case

    Fault B

    Isc maximum

    Both polarities (positive andnegative) are involved in thefault

    Simultaneous faults at A andD or C and E

    Either polarity may beinvolved at Voltage U

    Fault A or C No consequences

    Faults A and D

    or

    Faults C and E

    Isc max

    Either polarity may beinvolved at voltage U

    Fault B

    Isc maximum

    Both polarities (positive andnegative) are involved in thefault

    Fault B

    Each polarity may beinvolved at voltage U/2

    Fault A or C

    Isc < Isc maximum at U/2

    The negative or positivepolarity is involved

    Fault A

    Isc maximum

    Positive polarity is involvedin the fault

    Fault A

    All poles taking part inbreaking must be placed inseries on the positivepolarity. If the negativepolarity is grounded, anadditional pole must beprovided to be used forisolation of the negative polebut not for breaking

    Fault B

    Isc maximum

    Both polarities (positive andnegative) are involved in thefault

    06135605

    D C

    AB

    LoadU

    i

    E

    Isolated Source

    06135606

    C

    AB

    LoadU/2

    i

    U/2

    Grounded Middle Point

    061

    35607

    C

    AB

    LoadU

    i

    Grounded Negative

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    Masterpact NW DC Circuit BreakersGeneral Information

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    Circuit Breaker Connection

    Table 2: Circuit Breaker Connection Based on Distribution System

    Type

    Type N

    24 Vdc UN 500 Vdc

    Type H

    24 Vdc UN 500 Vdc

    Type H

    500 Vdc

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    Masterpact NW DC Circuit BreakersGeneral Information

    Frame Sizes and Interrupting ratings

    Line Line

    Load

    06135602

    LineLine

    Load

    06135603

    Line Line

    Load

    06135604

    Version C

    Version D

    Version E

    Load Diagrams Table 3: Interrupting Ratings for UL 489 Listed Masterpact NW Circuit Breakers

    Model

    Number(Version C)

    Circuit

    BreakerRating

    Endurance Rating (C/O cycles)

    (with no maintenance)Breaking Capacity1500 Vdc

    (max 600 Vdc unloaded)L/R 8 ms

    1 This circuit breaker is only suitable for use on ungrounded UPS systems, as stipulated in UL 489 standard supplement SC (SC11.4 andSC11.5)

    Breaking

    Time

    Closing

    TimeMechanical Electrical

    NW08NDC

    NW12NDC

    NW16NDC

    800 A

    1200 A

    1600 A

    10,000 2800

    35 kA 30 to 75 ms

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    Masterpact NW DC Circuit BreakersGeneral Information

    1111/2007 2007 Schneider Electric All Rights Reserved

    Correction Factors

    Shipping Weights

    Table 5: Temperature Correction Factors

    Maximum Ambient Temperature

    F 140 122 104 86 77 68 50 32 14 4 22

    C 60 50 40 30 25 20 10 0 10 20 30

    Current 0.83 0.92 1.00 1.07 1.11 1.14 1.21 1.27 1.33 1.39 1.44

    Table 6: Altitude Correction Factors

    < 6600 ft. (2000 m) 8500 ft (2600 m) 13,000 ft. (3900 m)

    Voltage 1.00 0.95 0.80

    Current 1.00 0.99 0.96

    Table 7: Weights for UL 489 Listed Masterpact NW Circuit Breakers

    Frame RatingConnector

    Type

    Weights (lbs./kg.)

    Circuit

    BreakerCradle Connector Pallet Total

    8002500 A, Drawout RCTH/RCTV109 lbs.(50 kg)

    97 lbs(44 kg)

    17 lbs(8 kg)

    17 lbs(8 kg)

    240 lbs(109 kg)

    8002500 A, Fixed-Mounted RCTH/RCTV109 lbs.(50 kg)

    17 lbs(8 kg)

    17 lbs(8 kg)

    143 lbs(65 kg)

    30004000 A, Drawout RCTH/RCTV109 lbs.(50 kg)

    97 lbs(44 kg)

    26 lbs(12 kg)

    17 lbs(8 kg)

    249 lbs(114 kg)

    30004000 A, Fixed-Mounted RCTH/RCTV109 lbs.(50 kg)

    26 lbs(12 kg)

    17 lbs(8 kg)

    152 lbs(70 kg)

    Table 8: Weights for IEC 60947-2 Rated Masterpact NW Circuit Breakers

    VersionCircuit Breaker

    Z-Connector

    NW10DCNW20DC NW40DC

    Type Weight Type Weight Type Weight

    C/D

    3P Fixed132 lbs(60 kg)

    6 lb.(2.5 kg)

    29 lbs(13 kg)

    3P Drawout198 lbs(90 kg)

    E

    4P Fixed176 lbs

    (80 kg)

    4P Drawout264 lbs(120 kg)

    06135577

    06135581

    061355

    82

    06135578

    0613

    5579

    06135580

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    Masterpact NW DC Circuit BreakersMicrologicDC1.0 Trip Unit

    Section 2MicrologicDC1.0 Trip Unit

    All Masterpact NW DC circuit breakers are equipped with Micrologic DC1.0 trip units, which isdesigned to protect power circuits and load devices.

    The Micrologic DC1.0 trip unit:

    is associated with sensors with instantaneous trip values than can be adjusted on the front of thetrip unit

    has three sensor versions provide different threshold ranges:

    12502500 A

    25005400 A

    500011000 A

    See trip curves, Figure 52

    has an instantaneous protection with no time delay settings

    has no overload protection provided

    Micrologic DC1.0

    Circuit breaker family

    Type of protection

    1 = instantaneous

    Figure 4: Micrologic DC1.0 Trip Unit

    Test

    RESET

    06135537

    Imo

    t

    l

    Micrologic DC1.0

    instantaneous

    instantan

    instantan o

    A1 = A2 =B1 = B2 =C1 = C2 =D1 = D2 =

    E1 = E2 =

    2500A3300A4000A5000A

    5400A

    06135525

    06135526

    Imo

    t

    l

    B D ECA

    Figure 5: Circuit Breaker Configuration and Sensor Locations

    06135548

    Micrologic

    Trip Unit

    Micrologic

    Trip Unit

    Micrologic

    Trip Unit

    Line Line Line Line Line Line

    Load Load Load

    Version C (3P) Version D (3P) Version E (4P)

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    Masterpact NW DC Circuit BreakersMicrologicDC1.0 Trip Unit

    1311/2007 2007 Schneider Electric All Rights Reserved

    has sensor adjustment dials accessible in front of the circuit breaker behind the door of the cubicle.Both sensors must have the same settings.

    NOTE: Dials are normally set to setting marked, for example B1 and B2 for 8000 A. Elevenintermediate values can also be set which are not indicated on the adjustment knob, for examplebetween A and B for 6000 A.

    Figure 6: Sensor Adjustment Dials

    instantaneous

    instantan

    instantan o

    A1 =A2= 2500A

    B1 =B2= 3300A

    C1 =C2 = 4000A

    D1 =D2 = 5000A

    E1 =E2= 5400A

    O IMicrologic DC1.0

    instantaneousinstantan

    instantan o

    A1= A2=B1 = B2 =C1 = C2=D1 = D2 =E1 = E2 =

    2500A3300A4000A5000A5400A

    A

    ED

    C

    instantaneousinstantaninstantaneo

    Pousser puis tourner :-sens horaire p/augmenter- sens antihora ire p/ diminuercommutateurs : m me r glage

    Push then turn :-toset higher,turnright-to setlower,turn l e ftknobs : same setting

    Empujar y rodar :- sentido horario p/ aumentar-sentido antihorario p/ disminuirconmutadores : mismo reglaje

    B

    1 AE C

    B

    2D

    1A

    ED

    C

    B 2A

    ED

    C

    B

    06135527

    06135652

    Table 9: Im Thresholds

    Sensor A B C D E

    12502500 A 1250 A 8% 1500 A 10% 1600 A 10% 2000 A 10% 2500 A 10%

    25005400 A 2500 A 8% 3300 A 10% 4000 A 10% 5000 A 10% 5400 A 10%

    500011,000 A 5000 A 8% 8000 A 10% 10000 A 10% 11000 A 10% 11000 A 10%

    Table 10: Sensors

    Frame

    Rating

    Model

    Number

    Sensor Type

    12502500 A 25005400 A 500011,000 A

    800 A NW08 X X X

    1000 A NW10 X X X

    1200 A NW12 X X X

    1600 A NW16 X X X2000 A NW20 X X X

    2500 A NW25 X X

    3000 A NW30 X X

    4000 A NW40 X

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    Masterpact NW DC Circuit BreakersAccessories

    Section 3Accessories

    Remote Operation

    NOTE: When remote operation features are used, a minimum of four seconds is required for the spring

    charging motor (MCH) to completely charge the circuit breaker closing springs prior to actuating theshunt close (XF) device.

    The remote ON/OFF function is used to remotely open and close the circuit breaker. It is made up ofthe following components:

    A spring-charging motor (MCH) equipped with a spring-charged limit switch; see page 15for moreinformation

    A shunt close (XF); see page 15for more information

    A shunt trip (MX1); see page 15for more information

    Optionally, the function may be completed with:

    A ready-to-close contact (PF)

    An electrical closing push button (BPFE)

    A remote reset following a fault (RES)

    The remote operation function may be completed with:

    Auxiliary contacts (OF)

    Overcurrent trip switch (SDE)

    NOTE: Induced voltages in the circuit at terminal C2 and/or A2 can cause the shunt close to not workproperly. The best way to prevent induced voltages is keep the circuit to terminal C2 and A2 as shortas possible. If it is impossible to keep the circuit less than 10 feet (3 m), use an interposing relay nearterminal C2 or A2.

    Terminals

    Figure 7: Wiring Diagram for Remote ON/OFF Function

    12 14

    11

    OF1

    82 84

    81

    SDE

    252 254

    251

    PF

    A2

    XF

    A1

    MX

    C2

    C1

    MCH

    B3 B2

    B1

    CH

    SpringCharged

    OpeningOrder

    ClosingOrder

    Ready toClose

    Fault

    Open Closed06133264

    06133832

    Masterpact Circuit BreakerEquipped for RemoteON/OFF Function

    Terminal

    Table 11: Terminal Characteristics

    Standards UL 486E

    Termination Capacity 2214 AWG solid or stranded wire with max. O.D. of insulation 3.5 mm

    CurrentNominal 10 A

    Minimum 100 mA at 24 V

    Pull-Out Forces

    22 AWG = 4.5 lbs (20 N)

    20 AWG = 6.75 lbs (30 N)

    18 AWG = 6.75 lbs (30 N)

    16 AWG = 9 lbs (40 N)

    14 AWG = 11.5 lbs (50 N)

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    Masterpact NW DC Circuit BreakersAccessories

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    Spring-Charging Motor (MCH)

    The spring-charging motor automatically charges the spring mechanism for closing the circuit breakerand also recharges the spring mechanism when the circuit breaker is in the ON position.Instantaneous reclosing of the circuit breaker is thus possible following circuit breaker opening. Thespring-mechanism charging handle is used only as a backup if auxiliary power is absent.

    The spring-charging motor is equipped as standard with a limit switch contact (CH) that signals thecharged position of the mechanism (springs charged).

    Shunt Trip (MX1) and Shunt Close (XF)

    Maximum Wire LengthThe inrush currents for these devices are approximately 200 VA. When lowsupply voltages (12, 24 or 48 V) are used, the maximum allowable wire length is dependent on thevoltage and the wire size.

    Shunt trip (MX1):When energized, the shunt trip instantaneously opens the circuit breaker. The shunttrip may be supplied continuously or intermittently.

    Shunt close (XF):Remotely closes the circuit breaker if the spring mechanism is charged.

    Spring ChargingMotor

    Table 12: Spring Charging Motor Characteristics

    Characteristics MCH

    Voltage Ratings (Vn)Vac 50/60 Hz 48/60, 100/130, 200/250, 240/277, 380/415, 400/440, 480

    Vdc 24/30, 48/60, 100/125, 200/250

    Operating Threshold 0.85 to 1.1 Vn

    Power Consumption 180 VA

    Motor Overcurrent 23 x Infor 0.1 s

    Charging Time 4 s maximum on NW

    Duty Cycle 3 cycles per minute maximum

    Endurance

    10,000 cycles for NW < 4000 A

    5000 cycles for NW 4000 A

    CH Contact 10 A at 240 V

    Shunt Trip (MX1) andShunt Close (XF)

    Table 13: Maximum Wire Length1

    1 The length shown in the table is for each of the two supply wires.

    DevicePercent of

    Source Voltage

    Source Voltage

    12 Vdc 24 Vdc 48 Vdc

    Wire Size

    14 AWG

    (2.08 mm2)

    16 AWG

    (1.31 mm2)

    14 AWG

    (2.08 mm2)

    16 AWG

    (1.31 mm2)

    14 AWG

    (2.08 mm2)

    16 AWG

    (1.31 mm2)

    UVR (MN)

    100% 159 ft.(48.5 m)

    100 ft.(30.5 m)

    765 ft.(233.2 m)

    472 ft.(143.9 m)

    85% 44 ft.(13.4 m)

    29 ft.(8.8 m)

    205 ft.(62.5 m)

    129 ft.(39.3 m)

    Shunt Trip (MX) andShunt Close (XF)

    100%57 ft.(17.4 m)

    34 ft.(10.4 m)

    314 ft.(95.7 m)

    200 ft.(61.0 m)

    1503 ft.(457.8 m)

    944 ft.(287.7 m)

    85%27 ft.(8.2 m)

    17 ft.(5.2 m)

    205 ft.(62.5 m)

    126 ft.(38.4 m)

    957 ft.(291.7 m)

    601 ft.(183.2 m)

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    Masterpact NW DC Circuit BreakersAccessories

    Additional Shunt Trip (MX2) or Undervoltage Trip (MN)

    This function opens the circuit breaker via an electrical order.

    It is made up of:

    Shunt trip (MX2, second MX) or,

    Undervoltage trip (MN)

    Instantaneous trip

    Fixed undervoltage trip (time delayed) or,

    Adjustable undervoltage trip (time delayed)

    As shown in the wiring diagram for the remote tripping function below, the delay unit (installed outsidethe circuit breaker) may be disabled by an emergency off button to obtain non-delayed opening of thecircuit breaker.

    When energized, the shunt trip (MX1) instantaneously opens the circuit breaker. A continuous supplyof power to the second shunt trip (MX2) locks the circuit breaker in the off position.

    The undervoltage trip (MN) instantaneously opens the circuit breaker when its supply voltage drops toa value between 35% and 70% of its rated voltage.

    If the undervoltage trip is not energized, it is impossible to close the circuit breaker, either manually orelectrically. An attempt to close the circuit breaker produces no movement of the main contacts.Closing is allowed when the supply voltage of the undervoltage trip reaches 85% of rated voltage.

    Table 14: Shunt Trip and Shunt Close Characteristics

    Characteristics MX1 XF Min Max

    Voltage Ratings (Vn)

    Vac

    50/60 Hz

    24 Vac 17 Vac 26 Vac

    48 Vac 34 Vac 52 Vac

    120 Vac 60 Vac 132 Vac

    240 Vac 168 Vac 264 Vac

    277 Vac 194 Vac 304 Vac

    380 Vac 266 Vac 418 Vac

    480 Vac 336 Vac 528 Vac

    Vdc

    12 Vdc 8 Vdc 13 Vdc

    24 Vdc 17 Vdc 26 Vdc

    48 Vdc 34 Vdc 52 Vdc

    125 Vdc 88 Vdc 137 Vdc

    250 Vdc 175 Vdc 275 Vdc

    Operating Threshold 0.7 to 1.1 Vn 0.85 to 1.1 Vn

    Power Consumption (VA or W) Steady-State/Inrush 4.5/200

    Circuit Breaker Response Time at Vn1

    1 Shunt trip (MX1) and shunt close (XF) circuits must be energized for minimum of 200 ms.

    50 ms 1070 ms 10 (NW 4000 A)

    80 ms 10 (NW > 4000 A)

    Second Shunt Trip (MX2)

    Figure 8: Wire Diagram for the Remote Tripping Function

    D1

    10 12

    3 6

    MN

    D2

    D1MN

    D2MX2

    C12

    C1

    or

    1

    OpeningOrder

    OpeningOrder

    DelayedOpeningOrder

    Instantane-ous OpeningOrder

    DelayedUnit

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    Time-Delay Module for Undervoltage Trip

    To eliminate circuit breaker nuisance tripping during temporary voltage dips (micro-breaks), operationof the undervoltage trip (MN) can be delayed. This function is achieved by adding an external delayunit (either adjustable or non-adjustable) to the undervoltage trip (MN) circuit.

    Table 15: Undervoltage Trip Characteristics

    Characteristics MX2 Min Max

    Voltage Ratings (Vn)

    Vac

    50/60 Hz

    24 Vac 17 Vac 26 Vac

    48 Vac 34 Vac 52 Vac

    120 Vac 60 Vac 132 Vac

    240 Vac 168 Vac 264 Vac

    277 Vac 194 Vac 304 Vac

    380 Vac 266 Vac 418 Vac

    480 Vac 336 Vac 528 Vac

    Vdc

    12 Vdc 8 Vdc 13 Vdc

    24 Vdc 17 Vdc 26 Vdc

    48 Vdc 34 Vdc 52 Vdc

    125 Vdc 88 Vdc 137 Vdc

    250 Vdc 175 Vdc 275 Vdc

    Power Consumption (VA or W) Constant/Inrush 4.5/200

    Circuit Breaker Response Time at Vn 50 ms 10

    Time-Delay Module forUndervoltage Trip (MN)

    Table 16: Time-Delay Module Characteristics

    Voltage Ratings of Undervoltage TripVac 50/60 Hz 24/30, 48/60, 100/130, 200/250, 380/480

    Vdc 24/30, 48/60, 100/130, 200/250

    Voltage Ratings of Time-Delay Module

    AdjustableVac 50/60 Hz 48/60, 100/130, 200/250, 380/480

    Vdc 48/60, 100/130, 200/250, 380/480

    Non-AdjustableVac 50/60 Hz 100/130, 200/250

    Vdc 100/130, 200/250

    Operating ThresholdOpening 0.35 to 0.7 Vn

    Closing 0.85 VnPower Consumption 4.5 VA/W (Holding), 200 VA/W (Inrush)

    Time-Delay SettingsAdjustable 0.5, 0.9, 1.5, and 3.0 s

    Non-Adjustable 0.25 s

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    Masterpact NW DC Circuit BreakersAccessories

    Switches

    Ready-to-Close Switch (PF)

    The ready-to-close position switch indicates that the following conditions are met and the circuitbreaker can be closed:

    The circuit breaker is open The closing springs are charged

    There is no standing closing or opening order

    Electrical Closing Push Button (BPFE)

    Located on the front panel of the circuit breaker, this pushbutton carries out electrical closing of the circuit breaker,taking into account all of the safety functions that are partof the control/monitoring system of the installation. Thepush button is installed on the control circuit of the shuntclose, and connects to the communicating shunt closemodule (XF-COM). Terminal A2 of XF-COM is used toremotely close the circuit breaker.

    Remote Reset (RES) and Automatic Reset After Fault Trip

    Following tripping, the remote reset (RES) resets the overcurrent trip switch (SDE) and themechanical indicator. (Voltage rating: 110/130 Vac and 200/240 Vac.) RES is not compatible withan additional overcurrent trip switch (SDE2).

    Automatic reset after fault-trip: Following tripping, a reset of the mechanical indicator (reset button)is no longer required to enable circuit breaker closing (factory adjustable only).

    Ready-to-CloseSwitch (PF)

    Table 17: Ready-to-Close Switch Characteristics

    Type of Contact 1a/1b Form C

    Maximum Number of Contacts 1

    Breaking Capacity at aPower Factor (p.f.) of 0.3

    Standard: 100 mA/24V minimum load Low-Level: 2 mA/15 V minimum load

    240/380 Vac 5 A 24/48 Vac 3 A

    480 Vac 5 A 240 Vac 3 A

    600/690 Vac 3 A 380 Vac 3 A

    24/48 Vdc 3 A 24/48 Vdc 3 A

    240 Vdc 0.3 A 125 Vdc 0.3 A380 Vdc 0.15 A 250 Vdc 0.15 A

    BPFE

    A2 A3

    XF

    A1

    Remote Orderto Close

    06133804

    Electrical ClosingPush Button (BPFE)

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    Auxiliary Switch (OF)

    The rotary-type auxiliary switches are directly driven by the trip mechanism when the minimumisolation distance between the main circuit breaker contact is reached.

    Overcurrent Trip Switch (SDE)

    Circuit breaker tripping due to a fault is signalled by a red mechanical fault indicator (reset) and oneovercurrent trip switch (SDE).

    Following tripping, the mechanical indicator must be reset before the circuit breaker may be closed. Anadditional overcurrent trip switch (SDE2) is supplied as an option and is not compatible with the remotereset (RES).

    Auxiliary Switch (OF)with Four Contacts

    Table 18: Auxiliary Switch Characteristics

    Supplied as Standard (Form C) 4

    Maximum Number of Contacts 12

    BreakingCapacity at aPower Factor(p.f.) of 0.3

    Standard (100 mA/24 V minimum load)

    Vac

    240/380 10 A

    480 10 A

    600/690 6 A

    Vdc

    24/48 10 A

    240 10 A

    380 3 A

    Low-Level (1 mA/4 V minimum load with a maximum current and voltage of 100 mA/10 V.

    Note: If the maximum voltage and current is exceeded, the low-level function of the switchwill be lost but the switch will continue to function as a standard switch with the followingspecifications.

    Vac

    24/48 Vac 6 A

    240 Vac 6 A

    380 Vac 3 A

    Vdc

    24/48 Vdc 6 A

    125 Vdc 6 A

    250 Vdc 3 A

    Overcurrent TripSwitch (SDE)

    Table 19: Overcurrent Trip Switch Characteristics

    Supplied as Standard 1a/1b Form C

    Maximum Number of Contacts 2

    Breaking Capacity at a Power Factor(p.f.) of 0.3

    Standard: 100 mA/24 V Minimum Load Low-Level: 2 mA/15 V Minimum Load

    240/380 Vac

    480 Vac

    600/690 Vac

    5 A

    5 A

    3 A

    24/48 Vac

    240 Vac

    380 Vac

    3 A

    3 A

    3 A

    24/48 Vdc

    240 Vdc

    380 Vdc

    3 A

    0.3 A

    0.15 A

    24/48 Vdc

    125 Vdc

    250 Vdc

    3 A

    0.3 A

    0.15 A

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    Masterpact NW DC Circuit BreakersAccessories

    Connected/Closed Switch (EF)

    This switch combines the device connected and device closed information to produce circuitclosed information. The connected/closed switch (EF) is supplied as an option and must be used withan additional auxiliary switch (OF) and fits into its connector (it is not available for ring terminals).

    Cradle Position Switch

    Three series of optional auxiliary switches are available for the cradle:

    Cradle position switches (CE) to indicate the connected position.

    Cradle position switches (CD) to indicate the disconnected position. This position is indicated whenthe required clearance for isolation of the power and auxiliary circuits is reached.

    Cradle position switches (CT) to indicate the test position. In this position, the power circuits aredisconnected and the auxiliary circuits are connected.

    Connected/ClosedSwitch (EF)

    Table 20: Connected/Closed Switch Characteristics

    Circuit Breaker Type NW

    Maximum Number of Contacts 8a/8b Form C

    Breaking Capacity at aPower Factor (p.f.) of 0.3

    Standard: 100 mA/24 V Minimum Load Low-Level: 2 mA/15 V Minimum Load

    240/380 Vac 6 A 24/48 Vac 5 A

    480 Vac 6 A 240 Vac 5 A

    600/690 Vac 6 A 380 Vac 5 A

    24/48 Vdc 2.5 A 24/48 Vdc 2.5 A

    125 Vdc 0.8 A 125 Vdc 0.8 A

    250 Vdc 0.3 A 250 Vdc 0.3 A

    Cradle PositionSwitch (CE, CD, CT)

    Actuator for Up To ThreeCE Switches (Standard)

    Actuator for Up To ThreeCD Switches (Standard)

    Actuator for Up To ThreeCT Switches (Standard)

    Table 21: Cradle Position Switch Characteristics

    Circuit Breaker TypeNW Possible Ring-Terminal Combinations

    CE CD CT CE CD CT

    Maximum Push-In Switches withStandard Actuators

    3 3 3

    1b 1a 1b

    1b 1a, 1b 1b

    1a, 2b 1a, 2b 1a

    With Additional Actuators

    9 0 0 1a, 2b 2a, 1b 1b

    6 3 0 2a, 1b 1a, 2b 1b

    3 6 0 1a 1a 1a

    6 0 3 3a 3a 1a

    BreakingCapacity at aPower Factor(p.f) of 0.3

    Standard (100 mA/24 V minimum load) 3b 3b 1b

    Vac

    240 8 AAdditional Actuators for Cradle

    Position Switches on Masterpact NW

    Circuit Breakers

    A set of additional actuators may be

    installed on the cradle to change or addthe functions of the cradle positionswitches. Each standard actuator can bereplaced by any other actuator tochange the function of the cradleposition switch.

    380 8 A

    480 8 A

    600/690 6 A

    Vdc

    24/48 2.5 A

    125 0.8 A

    250 0.3 A

    Low Level (2 mA/15 V minimum load)

    Vac

    24/48 5 A

    240 5 A

    380 5 A

    Vdc

    24/48 2.5 A

    125 0.8 A

    250 0.3 A

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    Cradle Connections

    Table 22: MasterpactNW UL Listed Circuit Breaker Connectors (Rear Connections)

    Type RatingConnector

    Drawout Circuit Breaker Fixed Circuit Breaker

    Rear-ConnectedT Vertical

    (RCTV)

    8002500 A

    30004000 A

    Rear-ConnectedT Horizontal

    (RCTH)

    8002500 A

    30004000 A

    06135588

    06135594

    06135589

    06135595

    06

    135590

    06

    135596

    06135591

    06135597

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    Masterpact NW DC Circuit BreakersAccessories

    Table 23: Masterpact NW IEC Rated 3P/4P Drawout Circuit Breakers

    Wiring Connector Type Ampere Rating Connector and Bussing

    Version C (3P)RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NA

    Continued on next page

    06135554

    06135560

    1

    06135561

    06135562

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    Version D (3P)RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NAContinued on next page

    Table 23: Masterpact NW IEC Rated 3P/4P Drawout Circuit Breakers(continued)

    Wiring Connector Type Ampere Rating Connector and Bussing

    06135555

    06135566

    06135567

    06135568

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    Masterpact NW DC Circuit BreakersAccessories

    Version E (4P)RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NA

    Table 23: Masterpact NW IEC Rated 3P/4P Drawout Circuit Breakers(continued)

    Wiring Connector Type Ampere Rating Connector and Bussing

    06135552

    06135572

    06135573

    06135571

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    Table 24: Masterpact NW IEC Rated 3P/4P Fixed Circuit Breakers

    WiringConnector

    Type

    Ampere

    RatingConnectors and Bussing

    Version C (3P)

    RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NA

    Continued on next page

    06135553

    06135557

    06135558

    06135559

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    Masterpact NW DC Circuit BreakersAccessories

    Version D (3P)

    RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NA

    Continued on next page

    Table 24: Masterpact NW IEC Rated 3P/4P Fixed Circuit Breakers(continued)

    WiringConnector

    Type

    Ampere

    RatingConnectors and Bussing

    06135555

    06135563

    06135564

    06135565

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    Version E (4P)

    RCTV

    10002000 A

    4000 A

    RCTH10002000 A

    4000 A NA

    Table 24: Masterpact NW IEC Rated 3P/4P Fixed Circuit Breakers(continued)

    WiringConnector

    Type

    Ampere

    RatingConnectors and Bussing

    06135556

    06135569

    06135570

    06135571

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    Masterpact NW DC Circuit BreakersAccessories

    Circuit Breaker Locking and Interlocking

    Push Button Lock

    A transparent cover blocks access to thepush buttons used to open and close the

    device. It is possible to independently lockthe opening button and/or the closing button.The push buttons may be locked using:

    One to three padlocks: 3/165/16 in.diameter, not supplied

    A lead seal

    Two screws

    Open Position Padlock and Key Lock Provisions

    The circuit breaker is locked in the off position by physically keeping the opening push button presseddown using one of the following:

    One to three padlocks: 3/165/16 in. diameter, not supplied

    Key locks: One or two Kirkor Federal Pioneerkey locks (keyed alike or differently) are availablefor ULListed/ANSI Certified circuit breakers; for IEC Rated circuit breakers, Ronis, Castell, orProfalux key locks are available

    Keys may be removed only when locking is effective. The key locks are available in any of thefollowing configurations:

    One key lock

    One key lock mounted on the device + one identical key lock supplied separately for interlockingwith another device

    Two different key locks mounted on the circuit breaker for double locking

    A locking kit for installation of one or two key locks may be ordered separately.

    Cradle Locking and Interlocking

    Disconnected Position Locking

    The circuit breaker can be locked in the disconnected position by key interlock (optional) or padlock(standard). The key interlock is on the cradle and accessible with the door locked.

    Key interlock, Kirk or Federal Pioneer are available for UL/ANSI circuit breakers; for IEC circuitbreakers, Ronis, Castell, or Profalux key locks are available. Captive key when unlocked.

    Locking on disconnected, test, and connected positions is optional for IEC circuit breakers andstandard for UL/ANSI circuit breakers.

    push OFFO Ipush ON

    06133463

    06133462

    Push Button Lock

    Open Position KeyLock

    Open Position PadlockProvision

    Table 25: Circuit Breaker and Switch Locking Options

    Type of Locking Maximum Number of Locks

    Pushbutton Locking Using padlocks Three padlocks

    Open Position LockingUsing key locks Two key locks (optional)

    Using padlocks and key locks Up to three padlocks and two key locks (optional)

    Tes t0

    6133464

    Key Interlock

    Padlock Hasp

    Disconnected PositionLocking Provisions

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    Masterpact NW DC Circuit BreakersAccessories

    Open Door Racking Interlock

    The racking interlock prevents racking in the circuit breaker when the door is open. (Insertion of thecircuit breaker racking crank is not possible when the compartment door is open.)

    Automatic Spring Discharge Mechanism

    The automatic spring discharge mechanism is standard for UL and ANSI circuit breakers, and optionalfor IEC circuit breakers. It releases the closing spring energy when the circuit breaker is moved fromthe disconnected position to the fully withdrawn position.

    Cradle Rejection Kits

    The cradle rejection feature (standard) ensures that only the properly designated circuit breaker orswitch is matched with the selected cradle assembly.

    Rail Padlocking

    Rail padlocking is standard for UL, ANSI, and IEC cradles. When used in combination with thedisconnected position locking device, rail padlocking prevents the movement of the circuit breaker from

    the disconnected position to the fully withdrawn position when the padlock hasp is pulled out and locked.

    Miscellaneous Accessories

    Mechanical Operation Counter (CDM)

    The mechanical operation counter (CDM) registers the total number of operating cycles. One CDM isinstalled per circuit breaker.

    06133790

    Open Door RackingInterlock

    06133802

    Automatic SpringDischarge Mechanism

    Figure 11: Cradle Rejection Kits

    Cradle Rejection KitContents

    00399

    06133798

    Mechanical OperationCounter (CDM)

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    Shutter and Shutter Lock

    The shutters automatically block access to themain disconnects when the circuit breaker is in thedisconnected, test, or fully withdrawn position. Theshutter lock is used to prevent connection of the

    circuit breaker or to lock the shutters in the closedposition.

    Door Escutcheon (CDP)

    These door escutcheons provide a frame and seal for the circuit breaker.

    Transparent Cover (CCP) for Door Escutcheon

    The cover is hinged-mounted and locked with a milled head, and is designed to be installed on thedoor escutcheon.

    Figure 12: Door Escutcheons

    06133174

    Shutter Lock

    ULCircuit Breaker Shutter

    06134065

    Escutcheon

    Seal

    06133818

    Escutcheon

    Seal

    Door Escutcheon (NW Drawout)Door Escutcheon (NW Fixed)

    06133819

    Transparent Cover (CCP)

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    Masterpact NW DC Circuit BreakersWiring Diagrams

    Section 4Wiring Diagrams

    NOTE: All diagrams are showing circuit breaker open, connected and charged.

    Figure 13: Wiring Diagrams for Masterpact NW Circuit Breakers

    Markings for Push-In Type Terminals

    Cell Switches Trip Unit Cell Switches

    CD3 CD2 CD1 COM UC1 UC2 UC3 UC4 M2C/M6C SDE2/Res. SDE1 CE3 CE2 CE1

    834 824 814 E5 E6 Z5 M1 M2 M3 F2+ V3 484/Q3 184/K2 84 334 324 314

    832 822 812 E3 E4 Z3 Z4 T3 T4 VN V2 474/Q2 182 82 332 322 312

    831 821 811 E1 E2 Z1 Z2 T1 T2 F1 V1 471/Q1 181/K1 81 331 321 311

    or

    CE6 CE5 CE4

    364 354 344

    362 352 342

    361 351 341

    Markings for Ring Terminals

    Cell Switches Trip Unit

    CD3 CD2 CD1 COM UC1 UC2 UC3 UC3a M2C/M6C M2Ca/M6Ca SDE2/Res. SDE2a SDE1 SDE1a

    834/832 824/822 814/812 E5 E6 Z5 M1 M2 M3 F2 VN 484/Q3 474/Q2 184/K2 182 84 82

    831 821 811 E3 E4 Z3 Z4 T3 T4 F1 471/Q1 181/K1 81

    E1 E2 Z1 Z2 T1 T2

    822

    824

    821

    812

    814

    811

    832

    834

    831

    CD3

    Disconnected

    CD2 CD1

    331

    332

    334

    CE3

    Connected

    321

    322

    324

    CE2

    311

    312

    314

    CE1

    914

    912

    911

    924

    922

    921

    CT3

    934

    932

    931

    CT2 CT1

    Test Position06133068

    Trip Unit Cell Switches

    Trip Unit

    = Not available on this circuit breaker

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    Masterpact NW DC Circuit BreakersWiring Diagrams

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    NOTE: All diagrams are showing circuit breaker open, connected and charged.

    Figure 14: Wiring Diagrams for Auxiliary Connections

    Markings for Push-In Type Terminals

    Remote Operation Auxiliary Switches Cell Switches

    MN/MX2 MX1 XF PF MCH OF24 OF23 OF22 OF21 OF14 OF13 OF12 OF11 OF4 OF3 OF2 OF1 CT3 CT2 CT1

    D2/C12 C2 A2 254 B2 244 234 224 214 144 134 124 114 44 34 24 14 934 924 914

    C13 C3 A3 252 B3 242 232 222 212 142 132 122 112 42 32 22 12 932 922 912

    D1/C11 C1 A1 251 B1 241 231 221 211 141 131 121 111 41 31 21 11 931 921 911

    or or or

    EF24 EF23 EF22 EF21 EF14 EF13 EF12 EF11 CD6 CD5 CD4

    248 238 228 218 148 138 128 118 864 854 844

    246 236 226 216 146 136 126 116 862 852 842

    245 235 225 215 145 135 125 115 861 851 841

    or

    CE9 CE8 C7

    394 384 374

    392 382 372

    391 381 371

    Markings for Ring Terminals

    Remote Operation Auxiliary Switches Cell Switches

    MN MX1 MX1a XF XFa PF CT1 MCH MCHa OF14 OF13 OF12 OF11 OF4 OF3 OF2 OF1 CE3 CE2 CE1

    D2 C2 C3 A2 A3 252 914/912 B2 B3 144 134 122 112 44 34 22 12 334/332 324/322 314/312

    D1 C1 A1 251 911 B1 141 131 121 111 41 31 21 11 331 321 311

    OF..

    Closed

    ConnectedClosed

    EF(OF..+CE)

    Not Connectedor Connectedand Open

    or

    ..1

    ..8

    ..6

    ..5

    12

    14

    11

    22

    24

    32

    34

    31

    21

    OF4

    42

    44

    41

    OF3 OF2 OF1

    Open Closed

    06133065

    ..2

    ..4

    oror

    181

    182

    184

    SDE2

    Fault

    Fault

    81

    82

    84

    SDE1

    K2

    RES

    K1

    PF

    252

    254

    251

    Charged

    MX1

    C2

    C3

    C1

    A2

    A3

    A1

    XF

    D2

    D1

    CHMN MX2

    C12

    C11

    B1

    MCH

    B3

    B2

    06133066

    SwitchesRemote Operation

    A

    AWhen remote operation features are used, make sure there is a minimum of four seconds for the spring charging motor (MCH) to completely charge the circuitbreaker closing springs prior to actuating the shunt close (XF) device.

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    Masterpact NW DC Circuit BreakersWiring Diagrams

    Additional Wiring Information

    Alarm Contacts (OF1, OF2, OF3 and OF4 are standard equipment) Cradle Contacts

    OF4

    OF3

    OF2OF1

    Open/Closed Circuit Breaker or

    Switch Position Contacts

    OF24: Open/Closed Circuit Breaker or SwitchPosition Contact

    orEF24: Combined Connected and Closed Contact

    CD3

    CD2

    CD1

    Disconnected

    Position Contacts

    CE3

    CE2

    CE1

    ConnectedPosition

    Contacts

    CT3

    CT2

    CT1

    Test Position

    Contacts

    OF23 or EF23 or or

    OF22 or EF22 CE6

    CE5

    CE4

    ConnectedPosition Contacts

    CE9

    CE8

    CE7

    ConnectedPositionContacts

    OF21 or EF21

    OF14 or EF14

    OF13 or EF13 or

    OF12 or EF12 CD6

    CD5

    CD4

    DisconnectedPositionContacts

    OF22 or EF22

    OF11 or EF11

    Remote Operation

    SDE Electrical Fault Alarm Contact

    RES Remote Reset

    MN Undervoltage Trip Device

    MX Shunt Trip

    XF Shunt Close

    PF Ready-to-Close Contact

    MCH Spring-Charging Motor

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    Masterpact NW DC Circuit BreakersDimensional Drawings

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    Section 5Dimensional Drawings

    Enclosure Information

    UL 3P Drawout Circuit Breakers

    Table 26: Minimum Enclosure Information

    Number

    of PolesCircuit Breaker

    Circuit Breaker Enclosure Dimensions Ventilation Area

    (H x W x D) Top Bottom Front Face

    in. mm in.2 mm2 in.2 mm2 in.2 mm2

    3P ULListed 18.37 x 30.00 x 15.75 466.6 x 762.0 x 400 16.62 10 720 16.62 10 720

    Figure 15: 8002500 A Master Drawing

    06135608

    Dimensions: in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 16: 8002500 A Rear-Connected "T" Vertical (RCTV)

    Figure 17: 8002500 A Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

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    Figure 18: 30004000 A Rear Connected "T" Horizontal (RCTV)

    Dimensions:in.mm

    Figure 19: 30004000 A Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 20: Drawout Cradle Mounting

    Figure 21: Door Cutout

    Dimensions:in.mm

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

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    Figure 22: Door Escutcheon Hole Pattern

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    UL 3P Fixed Circuit Breakers

    Figure 23: 8004000 A Master Drawing

    06135609

    Dimensions:in.mm

    Figure 24: 8002500 A Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

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    Figure 25: 8002500 A Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

    Figure 26: 30004000 A Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 27: 30004000 A Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

    Figure 28: Door Cutout Figure 29: Circuit Breaker Mounting

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 31: 10002000 A Version C Rear Connected "T" Horizontal (RCTH)

    Figure 32: 4000 A Version C Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

    Dimensions:in.mm

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    Figure 33: 10002000 A Version D Rear Connected "T" Vertical (RCTV)

    Figure 34: 10002000 A Version D Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 35: 4000 A Version D Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

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    IEC 4P Drawout Circui\t Breakers

    Figure 36: 10002000 A Version E Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersDimensional Drawings

    Figure 37: 10002000 A Version E Rear Connected "T" Horizontal (RCTH)

    Figure 38: 4000 A Version E Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

    Dimensions:in.mm

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    IEC 3P Fixed Circuit Breakers

    Figure 39: 10002000 A Version C Rear Connected "T" Vertical (RCTV)

    Figure 40: 10002000 A Version C Rear Connected "T" Horizontal (RCTH)

    Dimensions:in.mm

    Dimensions:in.mm

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    Figure 43: 10002000 A Version D Rear Connected "T" Horizontal (RCTH)

    Figure 44: 4000 A Version D Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

    Dimensions:in.mm

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    Figure 46: 10002000 A Version E Rear Connected "T" Horizontal (RCTH)

    Figure 47: 4000 A Version E Rear Connected "T" Vertical (RCTV)

    Dimensions:in.mm

    Dimensions:in.mm

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    Masterpact NW DC Circuit BreakersTrip Curves

    Section 6Trip Curves

    Figure 48: Trip Curves MicrologicDC1.0 Instantaneous Protection, U = 500 Vdc, L/R = 5 ms (IEC) or 8 ms (UL)

    06135653

    N (IEC)N (UL)

    12502500 A Sensors

    N (IEC)

    0613565

    4

    N (UL)

    25005400 A Sensors

    N (IEC)N (UL)

    06135655

    500011000 A Sensors

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    Figure 49: Trip Curves Micrologic DC1.0 Instantaneous Protection, U = 750/900 Vdc, L/R = 5 ms

    06135656

    06135657

    06135658

    12502500 A Sensors 25005400 A Sensors

    500011000 A Sensors

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    Masterpact NW DC Circuit BreakersTrip Curves

    Figure 50: Trip Curves Micrologic DC1.0 Instantaneous Protection, U = 500 Vdc, L/R = 15 ms

    06135533

    12502500 A Sensors

    06135534

    25005400 A Sensors

    06135533

    500011000 A Sensors

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    Masterpact NW DC Circuit BreakersTrip Curves

    Figure 52: Trip Curves Micrologic DC1.0 Instantaneous Protection, U = 500 Vdc, L/R = 30 ms

    06135659

    12502500 A Sensors

    06135660

    25005400 A Sensors

    06135661

    500011000 A Sensors

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    Masterpact NW DC Circuit BreakersTrip Curves

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    Figure 53: Trip Curves Micrologic DC1.0 Instantaneous Protection, U = 750/900 Vdc, L/R = 30 ms

    06135662

    06135663

    06135664

    12502500 A Sensors 25005400 A Sensors

    500011000 A Sensors

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    Masterpact NW DC Circuit BreakersSelection

    Section 7Selection

    Introduction

    Overview of Selection Procedure

    1. Select the completely assembled circuit breaker (circuit breaker frame plus trip unit):

    The frame ampere rating required

    The system voltage

    The interruption rating required

    The grounding system

    The connections

    2. Select circuit breaker frame options, if required.

    3. Select cradle options, if required.

    Factory-Assembled Circuit Breakers and Switches

    Table 27: Circuit Breaker Accessory Options

    Accessories Available for the Circuit Breaker and Cradle

    Shunt close Key locks for circuit breaker and cradle

    Shunt trip Padlock attachment (circuit breaker + cradle)

    Undervoltage trip Mechanical interlocks

    Fixed time delay Cradle position switches

    Adjustable time delay Door interlock

    Spring-charging motor Operations counter

    Auxiliary contacts (standard) Safety Shutter

    Ready-to-close contact Cradle rejection kit (standard)

    Overcurrent trip switch (standard) Rail Padlocking

    Rack in interlock

    Table 28: UL 489 Listed Circuit Breakers

    Frame Rating (A) Model NumberInterrupting Rating

    600 Vdc unloaded (500 Vdc loaded)

    800 NW08N

    35 kA

    1200 NW12N

    1600 NW16N

    2000 NW20N

    2500 NW25N

    3000 NW30N

    4000 NW40N

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    Switch Selection

    Table 29: IEC 60947-2 Rated Circuit Breakers

    Frame

    Rating

    (A)

    Model

    Number

    Interrupting Rating

    L/R 5 ms L/R 15 ms L/R 30 ms

    500 Vdc 750 Vdc 900 Vdc 500 Vdc 750 Vdc 900 Vdc 500 Vdc 750 Vdc 900 Vdc

    1000 NW10N 85 kA 35 kA 25 kA

    NW10H 100 kA 85 kA 85 kA 85 kA 50 kA 35kA 50 kA 50 kA 25 kA

    2000NW20N 85 35 kA 25

    NW20H 100 kA 85 kA 85 kA 85 kA 50 kA 35 kA 50 kA 50 kA 25 kA

    4000NW40N 85 35 kA 25

    NW40H 100 kA 85 kA 85 kA 85 kA 50 kA 35 kA 50 kA 50 kA 25 kA

    Table 30: IEC 60947-3 Rated, Non-Automatic Switch

    Frame Rating (A) Model Number Making Capacity Icm Withstand Current Icw (1 s)

    1000 NW10HA 85 kA 85 kA

    2000 NW20HA 85 kA 85 kA

    4000 NW40HA 85 kA 85 kA

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    Masterpact NW DC Circuit BreakersSelection

    REQUEST FOR QUOTATION FORM Page 1 of 2

    For faster quote processing, please use the following request for quotation form. For each section, check the applicable box or enter values corresponding to yourchoice. Note: this request for quotation form does not take into account incompatibilities. Order to be placed on CSSS.

    Date Customer Name: RFQ No.:

    From Location Account No.: Q2C No.:Phone No. Fax No. Contact Name: Phone No.:

    Messages Location: Fax No.:

    UL Listed Circuit Breaker Qty Cradle Secondary Disconnects

    Masterpact Type

    NW08 Choose one:

    NW12 Push-In Terminal (standard)

    NW16 Ring Terminal (UL option only)

    NW20

    NW25 Accessories for Remote Operation

    NW30 Spring-Charging Motor (MCH _____ V ac

    NW40 _____ V dc

    Circuit Breaker Interruption Rating N only available Shunt Close (XF) _____ V ac

    Type of Sensor

    1250 to 2500 A _____ V dc

    2500 to 5400 A Shunt Trip (MX1) _____ V ac

    5000 to 11000 A _____ V dc

    Load Connection Version C only available Additional Shunt Trip (MX2) _____ V ac

    Type of EquipmentFixed OR _____ V dc

    Drawout chassis Undervoltage Trip (MN) choose one

    Type of ConnectionVertical Top Bottom Instantaneous _____ V ac

    Horizontal Top Bottom _____ V dc

    Fixed-time delay _____ V ac

    IEC Rated Circuit Breaker or Switch Disconnector Qty _____ V dc

    Masterpact Type

    NW10 Adjustable-time delay _____ V ac

    NW20 _____ V dc

    NW40 Electrical closing push button (BPFE)

    Circuit Breaker Interruption Rating N, H Remote reset after fault trip (RES) 100130 Vac

    Switch-Disconnector Interruption Rating HA (incompatible with SDE2) 200240 Vac

    Type of Sensor

    1250 to 2500 A Wiring for Cradle (Complete only if ordering cradle without circuit breaker)

    2500 to 5400 A Wiring for additional overcurrent trip switch (SDE2) or electrical reset (RES)

    5000 to 11000 A Wiring for undervoltage trip (MN) or additional shunt trip (MX2)

    Load Connection C, D, E (Wiring for shunt trip (MX), shunt close (XF) and spring-charging motor (MCH)

    Type of EquipmentFixed Wiring for ready-to-close contact (PF)

    Drawout Wiring for four additional form C auxiliary switches (push-in terminals) or

    2a+2b auxiliary switches (ring terminals (OF)Type of Connection

    Vertical Top Bottom

    Horizontal Top Bottom Wiring for eight additional form C auxili9ary switches (Push-in terminals) (OF)

    Manufacturing Numbers Provided with Quotation

    Circuit Breaker:

    Cradle:

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    REQUEST FOR QUOTATION FORM Page 2 of 2

    Auxiliary, Alarm and Cradle Position Switches Cradle Interlocking and Accessories

    Auxiliary Switch (OF)

    Choose one:

    Door interlock

    Push-in type terminal or Ring terminal Racking interlock between racking crank and Off position

    4a/4b form C (std.) 2a + 2b std on UL, check for IEC

    8a/8b form C 4a + 4b Open door racking interlock

    12A/12B form C Automatic spring discharge std on UL, check for IEC

    Overcurrent trip switches Cradle rejection kit standard

    Standard (1a/1b form C) (SDE1) standard Terminal Shield

    Additional overcurrent trip switches (choose one) Miscellaneous Accessories

    1a/1b form C) (incompatible with RES) (SDE2) Mechanical operation counter

    (1a/1b form C) (incompatible with RES) (low-level (SDE2) Shutter

    Ready-to-close switch (PF) Std low-level Shutter with padlock provision and position indicator

    Push-in type cradle position switches (1a/1b form C) Transparent cover w/ door escutcheon (drawout circuit breaker only

    Connected position (max. qty.: 3 qty __ Locking and Interlocking Cradle Brkr.

    Test position (max. qty.: 3) qty __ Padlockable push button cover

    Disconnected position (max. qty.: 3) qty __ Padlock provision only Std

    Low-level cradle position switch One key lock

    Choose one: Qty. (Select manufacturer below)

    Connected/CLosed switch (max. qty.: 8) (EF) ______ Two key locks keyed alike

    Connected/CLosed switch (max. qty.: 8) (low-level EF) ______ (Select manufacturer below)

    Ring terminal type cradle position switches (1a or 1b contact) Two key locks keyed differently

    Connected position (max. 3a or 3b) qty/type ___________ (Select manufacturer below)

    Test position (max. 1a or 1b) qty/type ___________ Key lock manufacturer

    Disconnected position (max. 3a or 3b) qty/type ___________ Kirk Ronis

    Federal Pioneer Profalux Castell

    Manufacturing Number (provided with quotation)

    List Price

    Circuit Breaker: $

    Cradle: $ Delivery (from receipt of order)

    Total $

    Delivery Schedule

    Circuit Breaker and cradle to be shipped together

    Cradle to be shipped prior to circuit breaker

    Schneider Electric Conditions of Sale Apply

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