121-250

This High Pressure Plug Switch is a critical safety component designed for residential and commercial HVAC systems. Functioning as an air proving and high-limit pressure sensor, this switch monitors the internal pressure of your heating or cooling equipment to ensure safe operation. It acts as a protective cutout, interrupting the system's electrical circuit if pressures reach unsafe levels, thereby preventing compressor damage and potential system failure. Engineered for reliability, this switch features a standard plug-in design for efficient installation during routine maintenance or emergency repairs. It is an essential replacement part for maintaining the longevity and performance of air conditioning units and heat pump systems.
Type: Air Pressure Switch
Size: Small
Application: Commonly used in central air conditioning units, heat pumps, and HVAC systems to provide high-pressure safety cut-out protection and air flow verification.
Specifications: High-pressure safety limit; Cut-out rating: 650 PSI; Reset rating: 450 PSI; Plug-style connection.