Product description:
Square D DSL-206 Low Voltage AC Integrally Fused Power Circuit Breaker; 800 amp frame, 400 amp sensors, 600 volt. Manually operated, draw-out, Amptector I-A Model with LSIG functions, 1200 amp fuses. Used electrically OK.
EMSCO #AB-2014-20670 LOC: AB6-O1