Remote actuator 24V DC, 1 MW, In max. 125A, Switch-on

A remote actuator (ARD) is used to remotely switch connected circuit-breakers on and off. This significantly increases system availability. ARDs with an automatic function automatically switch the circuit-breaker back on. No reclosing occurs if a system error is detected. Devices from the DFA 3 series are extremely compact remote actuators for the DFS 2 and DFS 4 residual current circuit-breakers across the entire rated current range. They are available in the versions without and with three restart attempts. If the latter version recognises all attempts as unsuccessful, it blocks any further switching operations. All designs have the option of a manual switch-off and a semiconductor output, which signals the status of the flange-mounted RCCB.