547-150

Description

This 7-inch high limit switch is a vital safety component designed for residential and commercial heating systems, including furnaces and HVAC units. Functioning as a thermal safeguard, this control switch monitors the temperature within the heat exchanger or plenum. It is engineered to automatically interrupt the electrical circuit if temperatures reach a predetermined safety threshold of 150°F, preventing overheating and potential damage to the appliance. Once the system cools by 30°F, the switch resets to allow for normal operation. If your heating system is short-cycling or failing to provide consistent heat, a malfunctioning high limit sensor may be the cause. This durable replacement part ensures your furnace operates within safe temperature parameters, protecting your equipment and maintaining home safety.

Specifications

Type

High Limit Control Switch

Size

7-inch insertion length

Dimensions

7 inches

Application

Used primarily in forced-air furnaces, HVAC systems, and high-capacity heating appliances as a primary safety limit control.

Specifications

Cut-out Temperature: 150°F; Differential/Cut-in: 30°F; Automatic reset; Probe-style sensor.