3TA402K, Lug, 500-750/(1), 400 Amp maximum, K-Frame, Cu/AI wire, Aluminum lug kit, Cutler Hammer, Moulded case, Line and load terminal.  Set of 3 lugs and terminal shield.  Factory new.

Breaker frames: KD3400F, HKD3400F, KDC3400F, CKD3400F

Trip units: KT3100T, KT3125T, KT3150T, KT3175T, KT3200T, KT3225T, KT3250T, KT3300T, KT3350T, KT3400T, KES3400LS, KES3400LSI