Whether you are servicing a boiler system or an industrial process line

making it compatible with a wide range of Sterling and Beacon-Morris TF

while the NEMA 4 enclosure protects internal components against water and dust ingress

consult the appropriate UGLK series part number

Trane SWT1257 Limit Switch 318973-401 Whether you are servicing aThe Trane SWT1257 Limit Switch is a critical safety component designed for heavy duty furnace high limit switch applications. This genuine OEM Trane part (also referenced as SWT01257) functions as a normally closed thermal protector that triggers an automatic shutdown if heat exchanger temperatures exceed safe operating parameters. Rated with an L160 30F fixed set point, the switch is engineered to open at 160F and features an auto reset mechanism