Product description:
Square D DS-840 low voltage AC power circuit breaker; 4000 amp frame, 4000 amp sensors. Electrically operated, draw-out, 120 volt AC spring release, 120 volt AC motor circuit, 120 volt AC shunt trip, Digitrip RMS 510 S53LS (A) with LS functions. 4000 amp rating plug RP6D40A400. Used electrically OK.
EMSCO #AB-2014-20593 LOC: AB6-I4