040-156

This high-performance 24V coil relay is a vital electrical component designed for precision switching in heating, ventilation, and air conditioning (HVAC) systems. Functioning as an electromagnetic switch, this relay allows a low-voltage 24V signal from a thermostat or control board to safely manage high-voltage circuits for components like blower motors, fans, and compressors. It is an essential replacement part for troubleshooting HVAC units that fail to start, cycle improperly, or have experienced electrical failure. Designed for durability and reliable operation, this relay ensures efficient communication between your appliance's controls and its power systems, making it a critical fix for maintaining optimal residential or light commercial climate control.
Type: Electrical Relay
Size: Small / Standard
Application: Used in HVAC systems, furnaces, air handlers, and air conditioning units to control high-voltage components via low-voltage thermostat signals.
Specifications: Coil Voltage: 24V AC; Component Type: Electromagnetic Switch