What is the 550 volt replacement coil for an 8502A Contactor?
31012-400-63 for 60hz, 31012-400-65 for 50 hz. This 550 vac replacement coil is for Series B & C only, Series A coils are obsolete and no longer available. This also applied to all 8536A, 8538A, 8539A, 8606A, 8630A, 8640A, 8702A, 8736A, 8738A, 8739A, and 8810A, devices. For enclosed devices, the series information is based on device and not enclosure nameplate.