Multi-Voltage Conventional Relays
System Sensor's 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.
The R-10TA, R-20TA, R-14TA, and the R-24TA models are multi-voltage relays with terminal strip field wiring connections, mounting track, and hardware. The R-10TA is a single FORM-C (SPDT) relay with a red activation LED, and the R-14TA is a four-gang 1 FORM-C (SPDT) relay with four red activation LEDs. The R-20TA is a single 2 FORM-C (DPDT) relay with a red activation LED, and the R-24TA is a four-gang 2 FORM-C (DPDT) relay with four red activation LEDs.
The R-10EA/R-20EA and R-14EA/R-24EA are similar to the T-series track mount relays, but they are mounted into a steel enclosure. The enclosure has a removable front cover that provides easy access and an LED viewing hole on the top of the cover.
PR-1A/PR-2A/PR-3A are epoxy encapsulated multi-voltage relays. They are single-pole double-throw relays that use a red LED as a visible indication of relay coil energization. PR-3A is identical to PR-2A, except it has an extra pair of wires for redundant power input.
Model EOLR-1A is an epoxy encapsulated, single-pole singlethrow, normally open relay that can be used as an end of line device in fire alarm systems, e.g. to supervise power supplies.
