1s23-v01-0.pdf
Working with a third-party protection relay, the 1S23 adds arc fault coverage to a protection scheme. It monitors one or two 1S30 optical sensors to detect arcing faults within metal-clad air-insulated switchgear. Housed in a compact DIN-rail package, it provides M4 screw terminals for the optical sensors and auxiliary supply. The 1S23 delivers an arc fault trip output and continuously supervises the sensor for maximum availability. Interface wiring uses 2m colour-coded flying leads: blue for the arc fault trip output and white for the supervision status output. Refer to the 1S30 bulletin for sensor details.
