Carrier HH680502 Limit Switch 320734-701 supporting both left- and right-hand

supporting both left- and right-hand door swings to accommodate tight mechanical room footprints

leak-proof installation in tight mechanical spaces

This assembly is a field-selectable unit

this mechanical bypass damper requires no electrical wiring

Carrier HH680502 Limit Switch 320734-701 supporting both left- and right-handThe Carrier HH680502 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial furnaces. This 90 120F auto reset limit switch functions as a primary high limit control, specifically engineered to open the electrical circuit if internal plenum temperatures exceed the 120F threshold. Once the heat exchanger cools to the 90F reset point, the switch automatically closes, restoring system operation.