Killark GFCS05302 - Factory Sealed Ground Fault Chamber (Assemblies in Group B areas must be sealed within 6" of enclosure. Other area classification do not require the use of seals). 1" NPT top and bottom conduit openings. External Push-to-Test Button and Pilot Light for monitoring. ON-OFF_TEST-Reset External Handle can be locked in ON-OFF positions. 5ma Ground Fault Circuit Breaker for People Protection. 30ma Ground Fault Circuit Breaker for Equipment Protection and heat tracing circuits. Electrical Rating 120VAC (single pole), 120/240VAC (two pole), 10,000AIC. Killark GFCS Series of Hazardous Location Ground Fault Control Stations are used for additional safety of personnel as well as equipment protection for remote areas. Rated for indoor and outdoor applications, the copper-free aluminum construction is ideal for harsh and hazardous environments. GFCI (Ground Fault Circuit Interruptor) Circuit breaker configurations are available in 5mA for "People Protection" and 30mA for "Equipment Protection" and heat tracing circuits.