Used in chemical, oil refining, oil exploitation, offshore oil platforms, oil tankers, military and other hazardous areas;
Suitable for control of high-power electric heaters in hazard- ous areas and some equipment that requires on-site touch adjustment display;
Different installation methods are optional, such as hanging, floor-standing, piano table type.
Explosion protection
Gas explosion protection
Dust explosion protection
06: Ex db eb ib mb pzc IIC T4 Gc
07: Ex db eb pzc IIC T4 Gc/Ex pzc tb IIIC T135°C Dc
08: Ex db pxb IIC T6...T4 Gb/Ex db pzc IIC T6...T4 Gb
Ex pxb tb IIIC T80°C, T95°C, 135°C Db/Ex pzc tb IIIC T80°C, T95°C, 135°C Db
Conformity to standards
GB/T 3836.1, GB/T 3836.2, GB/T 3836.3, GB/T 3836.5, GB/T 3836.31, GB/T 3836.4
IEC 60079-0, IEC 60079-1, IEC 60079-2, IEC 60079-7, IEC 60079-31, IEC 60079-11
Electrical parameter
Rated voltage: Max.AC1500V 50/60Hz
Rated current: Max.1500A
Ambient Temperature Range and
Protection/Corrosion Protection Level
-60°C/-40°C/-20°C~+60°C, IP54/IP66, WF2
Material of exposed fastener
SS304/SS316 Stainless Steel
Enclosure material
Q235, Stainless Steel 304/316
Surface Finish and Color
Customized colors available, Stainless Steel default finish is brushed.
Air pressure
0.4~0.8 Mpa
Work pressure
200-600 Pa
Gas type
Inert gas, clean compressed air, nitrogen
Intake mode
Compensation type, ventilation type
Box structure type
Hanging type, floor type (left and right,up and down,integrated structure),piano table type
By installing all the electrical components of the user in a main cavityfilled with positive pressure clean medium, the air pressure in the maincavity is higher than the external air pressure, so as to effectively isolatethe ignition source and the explosive gas mixture, thereby achievingexplosion-proof purpose.
There are two intake types: positive pressure compensation type andpositive pressure ventilation type.
Compensation type: intermittent gas supply, positive pressure chambersealing is very good, gas consumption is also very small, generally used toconfigure non-explosion-proof touch screens that need to be touched;Ventilation type: continuous gas supply is required, which can take awaythe heat generated by the components installed in the positive pressurechamber at any time. The heat dissipation performance is good, and it issuitable for components with large heat generation inside, such as:high-power inverter, thyristor, high current circuit breaker, contactors, etc.;
According to the degree of transition of the dangerous area of the outer casing,it is generally divided into 2 categories.
1. Lower the explosion-proof hazardous Zone 1 to a non-hazardous zone for thepositive pressure housing;
2. Lower the explosion-proof hazardous Zone 2 to the non-hazardous zone for thepositive pressure housing;
Press the positive pressure start button. When the pressure in thepositive pressure chamber is greater than 60Pa, power suppliedautomatically to the positive pressure chamber. Positive pressurechamber enters the normal working stage. It should be re-purgedduring the purge. In the normal working stage, if the pressure is lessthan 60Pa, the user should provide0.2-0.8Mpa dry air.
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