020-527

This high-performance Low Pressure Cutout Switch is a vital safety component for residential and commercial HVAC systems. Functioning as an air proving switch, it is designed to monitor and detect drops in air pressure within the system’s ventilation or ductwork. When the pressure reaches the specified .250 Open threshold, the switch automatically interrupts the electrical circuit to ensure safe operation and prevent the unit from running under restricted airflow or vacuum conditions. Whether you are repairing a furnace, air handler, or heat pump, this reliable pressure switch ensures the motor and blower are functioning correctly before the heating or cooling cycle begins. Built for durability and precision, it is an essential replacement part for maintaining the efficiency and safety of your climate control equipment.
Type: Air Pressure Switch / Air Proving Switch
Size: Small
Application: Commonly used in HVAC equipment, gas furnaces, air handlers, and ventilation systems to monitor inducer motor performance and airflow safety.
Specifications: Configuration: Normally Closed (opens at setpoint); Setpoint: .250 inches WC (Water Column) Open; Function: Low Pressure Cutout / Safety Limit