The explosion proof enclosure range has Atex, IECEx, UL Certification s suitable for Zone 1, 2, 21 and 22 Hazardous Areas applications. The highlights: Up to four control elements can be mounted under a single actuator. • Voltmeters and ammeters withstand ambient temperatures as. Atexdelvalle offers world-class explosion-protected solutions guaranteeing highest quality and performance with no compromise. Inside a fuse is a thin, fusible strip of metal called the fuse element. When the current passing through it reaches a certain value, it will heat up and melt to cut off the circuit. Fuses. Warom Explosion proof Distribution Box (Ex d llB+H2) in 316 stainless steel. Equipped with a specialised hinge structure which can prevent damage to the flameproof joints when opening and closing the box; greatly. Explosion-proof distribution boxes are designed to safely control and distribute electrical power in hazardous environments, preventing ignition risks.