The stainless steel and plastic explosion-proof enclosure have been approved according to ATEX and IEC. Its material variants are plastic and stainless steal. The ignition protection rating are e(gas), tb(dust). Its ambient temperature of -30degree Celsius to +80degree Celsius. Foamed-in-place silicon foam seal, no joins/seams, mechanically stable, long-term protection against water ingress. IP 66 protection category. Enclosure group II, application above ground. Zone 1 and 2 or 21 and 22. This product is highly recommended.