Type S magnetic contactors and starters are for motor control applications and 8903S lighting contactors are for lighting control applications. This external convertible contact is mounted on the side of a contactor or starter. It is often used as part of the electrical control circuit. This auxiliary contact has one normally closed contact. Auxiliary contact module has a NEMA A600 contact rating with a maximum voltage rating of 600VAC. Inductive break rating of 6.0 A at 120 VAC. Contact modules are UL component recognized and CSA certified.