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C o n t a c t o r s
LTNS lineApplications
Transit and railway systems
Control of cranes
Mining equipment
Renewable energy
Rolling mills
Microelettrica Scientifica LTNS series have been developed to answer to the constantlyincreasing market need of reduced dimensions and weight, taking most of the huge know-how in designing and manufacturing of industrial bar mounted contactors.These contactors have been designed starting from the N series electric arc managementconcept, grafted on the light and compact structure of a rail unit, developed around the control electromagnet.The LTNS contactors, characterised by a nominal voltage of 750V, are available in a wide range of current ratings, from 80A up to 1300A (up to 3 poles). They can be configured in any combination of Normally Open or Normally Closed poles, with a common rating.They have been designed and tested according to the international standard IEC 60947-4-1and are suitable for almost any industrial low voltage application, such as: cranes, rolling mills,electric energy production and transformation, photovoltaic panels, induction furnaces,galvanic treatments.
• The extra heavy duty flexible line, up to 1000VDC/AC application, up to 1500A/pole• Stationary application only, derived from LTHS line• 1-2-3 pole configuration, NO and NC poles indirect or direct arc blow out options available• Flexible control and auxiliary contacts options, high unit customization possible
General Characteristics
C o n t a c t o r s : LT N S l i n e
Microelettrica Scientifica S.p.A. Via Alberelle, 56/58 20089 Rozzano - ItalyTel.: +39 02 575731 Fax: +39 02 57510940 - [email protected]
Type Ith [A] Rated NominalVoltage Ue [V]
Rated InsulationVoltage Ui [V]
D1/D3 [mm]Length (1-3 poles)
W [mm]
LTNS 60 80 600 750 72-130 193
LTNS 125 150 750 1000 86-169 260
LTNS 320 320 750 1000 105-277 350
LTNS 450 450 750 1000 105-277 360
LTNS 650 700 750 1000 105-277 405
LTNS 800 900 750 1000
1000
105-277 405
LTNS 1250 1300 750 1000 125-340 459
LTNS 1000 1100 750 125-340 459
H [mm]
138
185
260
260
280
280
350
350
H
D
w
LTHS08001*A03Type
Number of Poles
Mounting Position
Control Voltage Rating [Vdc]
Auxiliary Contact Blocks
Block Type*
Arc chute Material
Contact tips material*
* For details please refer to dedicated technical note
LTHS800
1 NO
Horizontal - Vertical
12 ÷ 220
Max 4x(1 NO + 1 NC or 2 NO)
SK - SL - LP - RK
Ceramic
S6
Description
Contactor with single interruption in air, electromagnetic control by full power coil. Single state functioning.
Reference Standard IEC 60077.
Electrical CharacteristicsRated Operational Voltage [Vac / Vdc]Max Operational Voltage [Vac / Vdc]Rated Insulation Voltage [V]Conventional Free Air Thermal Current [A] at 75°CDC-Rated Operational Current (τ=15ms) [A]
1500V750V
DC-Maximum Breaking Capacity (τ=15ms) [A]1500V750V
AC-Maximum Breaking Capacity (cosφ=0,8; 50Hz) [A]1500V750V
Component Category / Operational Frequency ClassShort Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Blow Out Circuit Type
Minimum clearancesfrom metal parts [mm]X = 300; Y = 80 ; Z = 40
150020002000800
11002200
18003600
22004500
A2 / C312
None7,2
Indirect with arcing contact
Mechanical CharacteristicsMechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary ContactsTips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental ConditionsStock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
LTHS08001*A03
Control CircuitControl Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms]Time Constant (L/R) at Pick Up - when Holding [ms]Electrical Connections
2x106
Cat.1 - Class B15
0.7Uc ÷ 1.25Uc
50 - 50210 - 40170 - 190Fast-On 6.35x0.8mm - Screw M4
Solid Silver (Gold plating opt)25010 (RK= 0.5)20Fast-On 6.35x0.8mm - Screw M4
-50°C ÷ +85°C-40°C ÷ +75°CPD3 - OV31500
bts
adv.
com
Rev.
0009
/201
0
Microelettrica Scientifica S.p.A. - 20089 Rozzano (MI) - Via Alberelle 56/58 ItalyTel. +39 02 575731 - Fax +39 02 57510940 - E-Mail: [email protected]
LTHS15001*A01Type
Number of Poles
Mounting Position
Control Voltage Rating [Vdc]
Auxiliary Contact Blocks
Block Type*
Arc chute Material
Contact tips material*
* For details please refer to dedicated technical note
LTHS 1500
1 NO
Horizontal - Vertical
24 ÷ 220
Max 4x(1 NO + 1 NC or 2 NO)
SK - SL - LP - RK
Ceramic
S4 - S6
Description
Contactor with single interruption in air, electromagnetic control by full power coil. Single state functioning.
Reference Standard IEC 60077.
Electrical CharacteristicsRated Operational Voltage [Vac / Vdc]Max Operational Voltage [Vac / Vdc]Rated Insulation Voltage [V]Conventional Free Air Thermal Current [A] at 75°CDC-Rated Operational Current (τ=15ms) [A]
1500V750V
DC-Maximum Breaking Capacity (τ=15ms) [A]1500V750V
AC-Maximum Breaking Capacity (cosφ=0,8; 50Hz) [A]1500V750V
Component Category / Operational Frequency ClassShort Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Blow Out Circuit Type
Minimum clearancesfrom metal parts [mm]X = 300; Y = 80 ; Z = 40
1500200020001250
11002200
18003600
22004500A2 / C316
< 50 (U > 1500Vdc)9.6
Indirect
Mechanical CharacteristicsMechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary ContactsTips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental ConditionsStock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
LTHS15001*A01
Control CircuitControl Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms]Time Constant (L/R) at Pick Up - when Holding [ms]Electrical Connections
2x106
Cat.1 - Class B16
0.7Uc ÷ 1.25Uc
55 - 55240 - 60190 - 210Fast-On 6.35x0.8mm - Screw M4
Solid Silver (Gold plating opt)25010 (RK= 0.5)20Fast-On 6.35x0.8mm - Screw M4
-50°C ÷ +85°C-40°C ÷ +75°CPD3 - OV31500
btsadv.com
Rev.0009/2010
Microelettrica Scientifica S.p.A. - 20089 Rozzano (MI) - Via Alberelle 56/58 ItalyTel. +39 02 575731 - Fax +39 02 57510940 - E-Mail: [email protected]
LTHS15002*A01Type
Number of Poles
Mounting Position
Control Voltage Rating [Vdc]
Auxiliary Contact Blocks
Block Type*
Arc chute Material
Contact Tips Material*
* For details please refer to dedicated technical note
LTHS 1500
2 NO
Horizontal - Vertical
12 ÷ 340
Max 4 x (1 NO + 1 NC)
SK - SL - LP - RK
Ceramic
S6
Description
Contactor with single interruption in air, electromagnetic control by full power coil. Single state functioning.Reference standard IEC 60077.
Electrical Characteristics
Rated Operational Voltage [Vac / Vdc]Max Operational Voltage [Vac / Vdc]Rated Insulation Voltage [V]
Series Connected Parallel ConnectedConventional Free Air Thermal Current [A] at 75°CDC-Rated Operational Current (τ=15ms) [A]
1500V750V
DC-Maximum Breaking Capacity (τ=15ms) [A] 1500V750V
AC-Maximum Breaking Capacity (cosφ=0,8; 50Hz) [A] 1500V750V
Short Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Component Category / Operational Frequency ClassBlow Out Circuit Type
Minimum clearances from metal parts [mm]X = 80; Y = 420 ; Z =30
1500 2000 2000
1250 2300
2600 15505200 3100
3200 19506400 3900
3600 21007200 4200
16 24<30 at 1500Vdc <50 at 1500Vdc
9.6 14.4A2 / C3Indirect
LTHS15002*A01
Mechanical Characteristics
Mechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary Contacts
Tips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental Conditions
Stock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
Control Circuit
Control Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms] Time Constant (L/R) at Pick Up - when Holding [ms] Electrical Connections
2x106
Cat.1 - Class B31
0.7Uc ÷ 1.25Uc
60 - 60280 - 30193.5 - 215Fast-On 6.35x0.8mm - Screw M4
Solid Silver (Gold plating opt)25010 (RK=0.5)20Fast-On 6.35x0.8mm - Screw M4
-50°C ÷ +85°C-40°C ÷ +75°CPD3 / OV31500
btsa
dv.c
omRe
v.00
09/
2010
Microelettrica Scientifica S.p.A. - 20089 Rozzano (MI) - Via Alberelle 56/58 Italy Tel. +39 02 575731 - Fax +39 02 57510940 - E-Mail: [email protected]
MS 接触器应用在 SMA 光伏逆变器的示意图（红圈处）
