Control unit 601D0100

601D0100 – ARC-detection relay 48-220 V DC  (Wiring diagram) 

The relay can monitor up to 16 arc detectors in parallel. In case of an arcing fault, the relay generates a fast tripping pulse to the circuit breaker(s) supplying the installation. The delay is less than 1 mSec. The arcing time is thus reduced to the mechanical opening time of the circuit breaker, reducing personal injury as well as damage of the installation. The relay is solid state with complete isolation between input and output. Thus the relay and the circuit breaker may have different pilot voltages. In TEST-position the relay can be tested without circuit breaker tripping. The relay has 2 free signal contacts: One contact is for remote indication of arcing fault trip. The other contact indicates absence of pilot voltage – or that the TEST-function is activated. The sensitivity to light (bias current) is adjustable within 1-12 mA on the front plate