Product description:
General Electric AKRU-4A-30 fused low voltage power circuit breaker; 800 amp frame, 600 amp sensor, 600 volt AC. Manually operated, draw-out, solid state type ECS trip unit, LI functions, open fuse, lock-out 568B583G1, 1000 amp fuses. Used electrically OK.
EMSCO# AB-2014-20813 LOC: AB3-F3