Type S magnetic contactors and starters are for motor control applications and 8903S lighting contactors are for lighting control applications. Contacts are easily replaced. This extends the life of the NEMA Size 4 contactor or starter or 8903SV lighting contactor. Kit includes the movable and stationary contacts and needed hardware for 3 poles. These contacts are used in contactors and starters that are UL listed and CSA certified. A wide variety of accessories are available for contactors and starters.