Trane RLY0902 DPDT Relay Coil 230V/24V

The Trane RLY0902 is a DPDT relay coil, this is an essentialfactor in an HVA system the abbreviation stands for Heating Ventilation, and Air conditioning. It works just like a switch used in the electrical circuit. The relay toggles on or off the second coil which needs to be able to handle more voltage than the first circuit, but it opens and closes by a low voltage signal (24V in this instance). This leads to the ability to use low-voltage signals from the thermostats, control panels or safety devices to power high-power equipment effectively and safely.