Certificates, Standards& Ex Markings

1. ExExplosion protectedEquipment designed for use in explosive atmospheres.
2. dFlameproofThe compressor, motors and control enclosure contain any internal explosion.
3. eIncreased safetyJunction boxes and heaters are built so they can't spark or run hot.
4. [ia]Intrinsically safe circuitsBarriers in the control enclosure limit sensor circuits to energy too low to ignite gas.
5. mbEncapsulationSolenoid coils are sealed in compound; level "b" suits Zone 1.
6. IIB+H2Gas group IIB plus hydrogenSuitable for IIA and IIB gases, and additionally hydrogen.
7. T3Temperature class T3Maximum surface temperature 200 °C.
8. GbEquipment protection level GbHigh protection: suitable for Zone 1 and Zone 2.

ATEX equivalent: II (1) 2 G Ex d e [ia] mb IIB+H2 T3. Each unit's nameplate carries its own marking, set by the certified parts fitted.

1. ExExplosion protectedEquipment designed for use in explosive atmospheres.
2. 60079-46Equipment assemblyAn assembly of individually certified parts, assessed as a whole under IEC TS 60079-46.
3. IIB+H2Gas group IIB plus hydrogenSuitable for IIA and IIB gases, and additionally hydrogen.
4. T4Temperature class T4Maximum surface temperature 135 °C.
5. GbEquipment protection level GbHigh protection: suitable for Zone 1 and Zone 2.

Certified as an equipment assembly under IECEx KLCS 23.0007X.

1. ExExplosion protectedEquipment designed for use in explosive atmospheres.
2. dbFlameproof, level bThe enclosure contains any internal explosion; level "b" suits Zone 1.
3. IICGas group IICThe most demanding gas group, including hydrogen and acetylene. Also covers IIA and IIB.
4. T4…T3Temperature class T4 or T3135 °C or 200 °C, depending on the operating conditions.
5. GbEquipment protection level GbHigh protection: suitable for Zone 1 and Zone 2.
6. TaAmbient temperature rangeCertified for −20 °C to +60 °C around the equipment.

A certified part used inside our units, under IECEx SIR 07.0095.