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.

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