Lennox 73K20 Limit Switch 326058-755 If the metallic seats and

If the metallic seats and springs show no signs of scale build-up

This genuine OEM component features a 1/2 inch NPT connection and durable aluminum housing

this motor is specifically wound for 208V single-phase operation

this unit features an adjustable trip point from 0

Can this be used with corrosive media

Lennox 73K20 Limit Switch 326058-755 If the metallic seats andThe Lennox 73K20 Limit Switch is a critical safety component designed for furnace high limit protection and temperature regulation in residential HVAC systems. As an OEM Lennox replacement part, this switch features a 3 inch insertion depth and operates on a 130 160F automatic reset logic. It is engineered to monitor heat exchanger temperatures, maintaining a normally closed circuit that opens upon reaching the 160F high limit threshold to prevent