Resideo RC840T-120 Electromechanical Relay 318172-701 This Potter & Brumfield series

This Potter & Brumfield series component features a Single Pole Double Throw (SPDT) contact configuration

When conducting Sensus regulator repair

The factory-preset 7-11" WC outlet pressure range provides stable delivery even with fluctuating inlet pressures

Key Benefits Broad Compatibility: Direct replacement for Lennox 102250-02 and Lifebreath 65-165R components

Resideo RC840T-120 Electromechanical Relay 318172-701 This Potter & Brumfield seriesThe Resideo RC840T 120 Electromechanical Relay with a built in 24V transformer is a critical component for integrating line voltage equipment into low voltage control systems. This switching relay operates on a 120 Vac input and provides a 24V, 40 mA, 1. 2 VA control signal, making it the industry standard for controlling electric baseboard heaters, resistive cooling loads, and inductive fan motors. The unit features an internal transformer that