System Sensor R-10E Relay

System Sensor R-10E relay is a multi-voltage SPDT (single-pole double-throw) relay built for fire alarm and life safety control systems. It supports 24 VDC, 24 VAC, 115 VAC, and 230 VAC operation, with a maximum of 20 mA DC, and comes in a steel enclosure with removable cover. The unit mounts on a surface using included mounting hardware and uses terminal strip connections for wiring, and it includes an integrated activation LED for status indication. Brand: System Sensor; Part number: R-10E. Operating temperature range is −40 °F to 158 °F (−40 °C to 70 °C) with a humidity range of 10–85% non-condensing. Typical applications include fire alarm panels, smoke detection networks, notification circuits, and building protection systems; it is used for repair, retrofit, expansion, and replacement in commercial and industrial installations. Common replacements include System Sensor R-20E, R-14E, and Potter RLY series relays.