Comparison : Item # M3MS400T3, Ex9 Series M3M, S Interrupting - Bus Bar Connection Molded Case Motor Circuit Protector
Item # M3MN400T3, Ex9 Series M3M, N Interrupting - Bus Bar Connection Molded Case Motor Circuit Protector
Item # M3MH400T3, Ex9 Series M3M, H Interrupting - Bus Bar Connection Molded Case Motor Circuit Protector
Item # M3MS400T3L, Ex9 Series M3M, S Interrupting - Lug Line/Load Side Connection Molded Case Motor Circuit Protector
Item # M3MN400T3L, Ex9 Series M3M, N Interrupting - Lug Line/Load Side Connection Molded Case Motor Circuit Protector