The relay is designed for the supervision of the trip circuit of a circuit breaker with one trip coil.
The trip circuit wiring is supervised from the positive supply to the negative supply whilst the circuit breaker is open or closed.
The supervision current is always less than 1,4mA thus avoiding unwanted operation of the trip coil.
Correct operation is shown via a green LED.

CONTROL   AND   PROTECTION   FUNCTIONS

• Trip Coil Supervision [74TC]

MAIN   FEATURES

• Output contacts: 1 change-over contact (alarm) + 1 change-over contact (trip)
• Power supply: 48, 110, 125 Vdc