Resideo Honeywell RC840T-120 Electromechanical Relay with 24V – 120V Transformer, for Radiant Heating Applications

Resideo Honeywell RC840T-120 Electromechanical Relay with 24V – 120V Transformer. Compatible with 2- and 3-wire thermostat, this all-in-one relay includes a built-in 24 V transformer.

Features:
Direct replacement for any brand name relay
Built-in 24 V transformer for easy installation.
Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)
Immediate relay activation provides improved temperature control and comfort
Epoxy-soundproofed relay ensures quiet operation
Terminal board connection enables easy installation
Low current consumption means multiple relays can be controllers by a single thermostat

This part works with the following brands: Resideo, Honeywell, Aube