MES3800LSI, 3 Pole, 800 Amp, Electronic trip unit LSI, Digitrip RMS 310, Independently adjustable short delay pickup and short delay time. M-Frame. Cutler Hammer. For use with MDL, HMDL, CMDL, CHMDL circuit breakers. Requires rating plug. Factory new.
Please contact us for any assistance in finding parts to build a complete breaker.