|The LC1D09 contactor is part of the largest selling line of contactors and starters in the world. The LC1D09M7 offers high reliability with long mechanical and electrical life and the most complete line of accessories in the industry. Square D is one of the only manufacturers that produce these contactors with 1 normally open and 1 normally closed base contact so often times you will not need to purchase any additional auxiliary contact blocks One of the greatest aspects of this contactor is its versatility. LRD Overload relays can be easily added as they are directly mounted to the load side of the LC1D09. LADN auxiliary contact blocks are simply snapped onto the top of the contactor, giving you configurations from 2 through 4 poles of additional contacts.