The ISO Series single channel devices are used to provide a safeand reliable means of controlling loads from hazardous locationswithout releasing sufficient energy, under normal or abnormalconditions, to cause ignition of a flammable or combustibleatmospheric mixture while in its most easily ignited concentration.An isolated output turns on when the control switch input from thehazardous location is closed. When the control switch input opens,the isolated output turns off. The Style A single channel plug-indevices come equipped with integral spring mating clips and socketPF083A which secure the device to make this unit the onlyUL913 Intrinsically Safe plug-in associated apparatus available onthe market today. The Style N, surface mounted enclosure is sealedwith a high quality epoxy resin material and has five 5 #8-32screw terminals.