Working in conjunction with a third party protection relay the 1S23 adds Arc Fault coverage to a protection scheme. The 1S23 monitors either one or two 1S30 optical sensors to detect the presence of an arcing fault within Metal Clad air insulated switchgear. Housed in a compact din rail mounted package the 1S23 provides M4 screw terminals for connection of 1S30 optical sensors and an auxiliary voltage supply. The 1S23 provides an Arc Fault trip output and also continuously supervises the optical sensor to ensure maximum availability of the Arc Fault Protection scheme. The interface wiring to the protection relay status inputs is provided by 2m colour coded flying leads, the blue lead provides the Arc Fault Trip output and the white lead is for the Supervision Status output. Refer to the 1S30 Technical Bulletin for details on the arc fault sensor.<\/p>\n
1S23\/ v01.0 \/ 24\/03\/2025 – 2\/11<\/p>","protected":false},"featured_media":4169,"template":"","meta":{"_acf_changed":false,"sku":"1S23","katanapim_id":"29572","external_key":"1S23","parent_external_id":"P-Arc Flash Monitoring Systems","grandparent_external_id":"GP-Transmission and Primary Distribution","product_type_description":"ChildProduct","product_short_description":"ARC Fault Interface Module","product_long_description":"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.","product_related_products":[],"product_attachments":null,"product_published":true,"product_application":"For new installations or simple retrofits, the 1S23 interfaces with the binary inputs of existing protection relays that trip a circuit breaker. Arc fault protection can be implemented on an arc-only basis, or enhanced with a current check using protection relay logic and a fast instantaneous overcurrent element. The relay used should have programmable AND-gate logic, high-speed status inputs (<5 ms), a high-speed current check (<15 ms at 2\u00d7 setting) and programmable indication.","product_features":"