Resideo RT850 Relay 321142-301 which protects against thermal shock

which protects against thermal shock and ensures immediate heat transfer availability

it delivers the accuracy required for sophisticated building automation

Pilot operated valves utilize the pressure of the fluid itself to assist in opening and closing the valve

or erratic flame signal data

using it with non-Danfoss equipment may result in thread pitch mismatches or sealing failures

Resideo RT850 Relay 321142-301 which protects against thermal shockThe Resideo RT850 Relay is a heavy duty 120V TRIAC solid state relay engineered for contractors who require high precision load management without the mechanical wear of traditional contactors. Designed specifically for electric heating applications like baseboard heaters, convectors, and radiant ceilings, this unit provides 100% silent operation. The solid state switching technology eliminates the "click" noise associated with mechanical relays,