Accepts up to (12) GMT fuse load positions and (4) bullet nose-type circuit breaker load positions. Designed for mounting in a 19″ relay rack. UL Recognized for use in DC power distribution centers for communications equipment. Includes an external fuse alarm circuit card which provides resistive battery and Form-C relay contacts to external CBA/FA alarms. Relay contacts rated for 30 VDC @ 2 A.