Unlike traditional spring-return models

it will not generate the vacuum needed to prove the circuit

System Protection: Actively monitors for restricted airflow or blower failure to prevent overheating

A trip indicates the sensor is detecting temperatures above 150°F

Rugged Construction: Built with a forged brass body and stainless steel internal components for durability in high-pressure cycles

Supco SHP400200 Pressure Switch 326058-758 Unlike traditional spring-return modelsWhen you are dealing with high head pressure issues in the field, you need a component that provides exact cut out and cut in points without drifting. The Supco SHP400200 High Pressure Switch is a veteran grade HVACR refrigeration control designed for heavy duty system protection. This SPST high pressure switch is factory set to open on pressure rise at 400 PSI (Cut Out) and features an automatic reset that closes at 200 PSI (Cut In). It is built with