3SE7921-1AC

The S0 frame contactor with a 48V safety extra-low voltage coil and 2NO+2NC reinforced auxiliary contacts is suitable for low-voltage control circuits that still require multiple interlocks or signal feedback.

The S0 frame contactor with a 48V safety extra-low voltage coil and 1NO+1NC auxiliary contacts is suitable for control circuits and special machine tool designs with high requirements for personnel safety.

The S0 frame contactor with a 110V coil and 2NO+2NC reinforced auxiliary contacts is suitable for control box applications requiring multiple interlocks, fault indication, or signal feedback.