Comparison : Item # M6MS1200E3F, Ex9 Series M6M, S Interrupting - Bus Bar Connection Molded Case Motor Circuit Protector
Item # M6MN1200E3F, Ex9 Series M6M, N Interrupting - Bus Bar Connection Molded Case Motor Circuit Protector
Item # M6MS1200E3LF, Ex9 Series M6M, S Interrupting - Lug Line/Load Side Connection Molded Case Motor Circuit Protector
Item # M6MN1200E3LF, Ex9 Series M6M, N Interrupting - Lug Line/Load Side Connection Molded Case Motor Circuit Protector