Featuring ball bearings and a 1

Durable SPST Design: Offers reliable switching for 24V control circuits

Universal 1/2-Inch Bore: Features a reinforced hub with a reliable set screw for secure mechanical attachment

What causes an X13 motor to fail prematurely

Lennox 10U40 Pressure Switch 321702-401 Featuring ball bearings and aThe Lennox 10U40 Pressure Switch is a critical safety component designed for high pressure monitoring in HVAC systems. Identified by part number 675 490#, this high pressure switch serves as a reliable cutoff mechanism to protect the compressor and system components from excessive pressure build up. Engineered for precision, it functions as a normally closed pressure switch that opens the electrical circuit when internal system pressure exceeds the