Schneider Electric (Square D) 9999D11 1 N/O 1 N/C Definite Purpose Contactor Auxiliary Contact

The Schneider Electric (Square D) 9999D11 Auxiliary Contact operates as a small electrical component that increases control circuit adaptability. The 1 NO and 1 NC configuration of this part enables status indication or interlocking in control circuits to ensure safe and reliable contactor or motor starter operation. The part features an installation design that enables fast mounting on Square D contactors and starters. The auxiliary contact enhances system automation requirements through better control systems reduced downtime and improved monitoring capabilities in commercial and industrial HVAC systems.