Trane SWT1611 Auto Limit Switch 3" Insert 140°F–170°F

The Trane SWT1611 Auto Limit Switch 3" insert is a temperature sensing secure control, which is used to regulate the operation of heat in the HVAC systems. It works by checking the temperature of the air or surface inside or outside a building and turning on or off an electric circuit according to preset values. The switch is mounted directly into duct or heat section mounting points with the extended insert to fit into the duct or heat section. It is programmed to shut off at 140°F and turn on at 170°F, which assists in controlling heating cycles and safeguarding parts.