Explosion Protected Enclosure
Tel +82-43-877-3611 / Fax +82-43-877-3615
Tel +82-31-499-3611 / Fax +82-31-499-3615
Hwasin Industrial Systems Co., Ltd.
60, Maengdongsandan 1-gil, Maengdong-myeon, Eumseong-gun, Chungcheongbuk-do, Korea
65, Mayu-ro 186beon-gil, Siheung-si, Gyeonggi-do, Korea
Explosion Protected Enclosure Catalogue V.1
HSBOX Enclosure HSBOX Enclosure
EX-UC, EX-UP, EX-SC, EX-SP 203015 ( W200 * H300 * D150 )
EX-UC, EX-UP, EX-SC, EX-SP 203020 ( W200 * H300 * D200 )
EX-UC, EX-UP, EX-SC, EX-SP 303015 ( W300 * H300 * D150 )
EX-UC, EX-UP, EX-SC, EX-SP 303020 ( W300 * H300 * D200 )
EX-UC, EX-UP, EX-SC, EX-SP 304015 ( W300 * H400 * D150 )
EX-UC, EX-UP, EX-SC, EX-SP 304020 ( W300 * H400 * D200 )
EX-UC, EX-UP, EX-SC, EX-SP 405015 ( W400 * H500 * D150 )
EX-UC, EX-UP, EX-SC, EX-SP 405020 ( W400 * H500 * D200 )
EX-UC, EX-UP, EX-SC, EX-SP 507015 ( W500 * H700 * D150 )
EX-UC, EX-UP, EX-SC, EX-SP 507020 ( W500 * H700 * D200 )
EX-DP 081306 ( W80 * H130 * D60 )
EX-DP 081806 ( W80 * H180 * D60 )
EX-DP 122008 ( W120 * H200 * D80 )
EX-DP 152010 ( W150 * H200 * D100 )
EX-DP 161609 ( W160 * H160 * D90 )
EX-DP 162609 ( W164 * H264 * D91 )
EX-DP 232811 ( W230 * H280 * D110 )
EX-DP 233312 ( W230 * H330 * D120 )
Steel & Stainless Steel EX Enclosure
Aluminum EX Enclosure
Explosion Proof notation ( )
Box Ingress Protection Grade ( )
EX range is designed for use in any
enviroments where an explosive
atmosphere may be present.
The materials of the EX range junction
boxes are 316L grade stainless steel
and aluminum dies castings.
The powder coated steel or 304 grade stainless steel boxes are also available upon requests.
Junction Box of EX range complies with the International Standard IEC 60079-0 (2011), IEC 60079-7 (2007),
IEC 60079-31 (2013). EX range is used both as junction box with or without terminals.
The product, combined with certified Empty Enclosure(IECEx KTL 16.0009 U) and Terminal blocks
(Weidmuller, Phoenix). We have been dedicated to manufacturing electrical enclosures over the past 30
years in Korea. Our product lineup ranges from steel, stainless, and plastic enclosures to aluminum
enclosures. We are also ready to meet the specific customization (made-to-order) demands of our
customers from designing to delivery. We also have products with international certifications including UL,
TUV and CE and are committing ourselves to developing quality products that meet the international
. EX 316L
IEC 60079-0 (2011),
IEC 60079-7 (2007), IEC 60079-31 (2013) . EX (IECEx KTL 16.
0009 U) . () 30
. , , , ,
. , UL, TUV, CE
HSBOX Enclosure HSBOX Enclosure
Arc Spark Arc Spark
Ex e ll C T4 IP66
* : (), ( )
, , , , ,
, , , ,
, , 1-, , ,
, , ,
, , 2-, , ,
A B C
Type of protection
sign Type of protection basic principle
additional measures are applied to increase the level of safety, thus preventing the possibility of excessive tempertures and the occurance of sparks or electric arcs within the enclosure or on exposed parts of electrical apparatus, where such ignition sources would not occur in normal service.
The formation of a potentially explosive atmosphere inside a casing is prevented by maintaininga positive internal pressure of protective gas in relation to the surrounding atmosphere and, where necessary,by supplying the inside of the casing with a constant flow of protective gas acting to dilute any com-bustible mixtures.
Additional measures are applied to increase the level of safety, thus preventing the possibility of excessive temperatures and the occurance of sparks or electric arcs within the enclosure orexposed parts of electrical apparatus, where such ignition sources would not occur in normalservice.
Apparatus used in a potentially explosive area con-tain intrinsically safe electric circuits only.An electric circuit is intrinsically safe if no sparks or thermal effects produced under specifiedtest conditions (which include normal operation and specific fault conditions) is not capable of causing ignition of a given explosive atmosphere.
Electrical apparatus cannot ignite a explosive atmosphere surrounding them (in normal operation and under defined abnormal operating conditions).
Electrical apparatus or parts of electrical apparatus are immersed in a protective fluid (such as oil),such that a potentially explosive atmosphere existing over the surface or outside of the apparatuscannot be ignited.
Parts that are capable of igniting an explosive atmo sphere by either sparking or heating are enclosed in a compound in such a way as to avoid ignition of an explosive atmosphere.
Filling the casing of an electrical apparatus with a fine granular packing material has effect ofmaking it impossible for an electric arc created in the casing under certain operating conditionsto ignite a potentially exlposive atmosphere surrounding the casing. lgnition must not result eitherfrom flames or from raised temperature on the surface of the casing.
Type of Protection
Explosion Proof notation
Ex e ll C T4 IP66Explosion Proof Protection Concept Classification Gas Temperature Box Ingress Protection
Gas groups and Temperature classification* Classification : (Methane), (Factory and industry)
Maximum surface temperature ()
Acetone, ammonia, carbon monoxide, ethane, acetic acid,Ethyl acetate, toluene, propane, benzene, methanol, methane
Ethanol, butyl acetate Infante, 1-butanol, acetic anhydride,butane, Chlorobenzene, ethylene, vinyl acetate, propylene
Petrol, hexane, 2-butanol, isoprene, heptane, chlorinated butyl
Acetaldehyde, diethyl ether, octane
Water gas, Hydrogen
A B C
HSBOX Enclosure HSBOX Enclosure
reBox Ingress Protection Grade : IEC60529
First DigitProtection against Protection against Protection against
Second Digit IK Code
Proteted against Solid objects over 50mm(Hands)
No Protection No Protection No Protection
Proteted against Solid objects over 12mm(Fingers)
Proteted against Solid objects over 2.5mm(Small wires + Tools)
Proteted against Solid objects over 1mm(Small wires + Tools)
Proteted against Dust - Limited ingresspermitted
Totally protectedagainst dust
Proteted against Vertically falling dropsof water
- Impact 1 Joule
- Impact < 1 Joule
Proteted against Direct spray of waterup to 15 from thevertical
- Impact 2 Joule
- Impact 5 Joule
- Impact 10 Joule
- Impact 20 Joule
Proteted against Spray to 60 from the vertical
Proteted against Water sprayed from all directions
Proteted against Low pressure jets of waterfrom all directions
Proteted against High pressure jets of waterfrom all directions
Proteted against The effection of immersion between 15Cm ~ 1m
Proteted against Long periods of immersion under pressure
IP TEST IP TEST IK TEST
Solid Object Liquids Mechanical impact
first number refers to protection from solid objects or materials.
second number refers to protection from liquids.
IP Ratings (Ingress Protect