System Sensor PR-1 Epoxy Encapsulated (SPDT) Relay With Activation LED PR-1: Multi-Voltage Relay · Epoxy encapsulated · Single-Pole · Double-Throw · Activation LED Multi-voltage conventional relays are used for high-current switching applications such as fan and damper assembly control, door control, air handling unit controls, and other types of system interfacing. They are single-pole, double-throw relays that use a red LED as a visible indication of relay coil energization. Key Features Multi-voltage operation Activation LEDs Easy and flexible installation Reliable and robust design Multipurpose field installations Multi-voltage relays with terminal strip field wiring connections, mounting track, and hardware for R-10T/20T and R-14T/24T Removable front cover on steel enclosure for R-10E/R-20E and R-14/R-24E, which mount inside the enclosure LED viewing hole on top of the steel enclosure’s cover Extra pair of wires for redundant power input on PR-3 and PR-3A Terminal strip field wiring connections, mounting track, and hardware Documents & Downloads Multi-Voltage Conventional Relays Data Sheet (Data Sheet) Multi Voltage Conventional Relays Data Sheet (Data Sheet) Multi-Voltage Relays Datasheet (Data Sheet) Multi-Voltage Conventional Relays Data Sheet (Data Sheet) Multi-Voltage Conventional Relays Data Sheet (Data Sheet) PR-1A Multi-Voltage Relay Installation Guide (Installation Manual) PR-1 Multi-Voltage Relay Manual (User Manual)