The components are designed for AC construction valves

reducing electrical arcing and extending the service life of the compressor contactor or fan relay it initiates

This model is an automatic reset switch that re-engages the circuit once pressure drops to approximately 200 PSI

featuring 5-1/4" lead wires and a 1/4" female terminal connector for clean integration into existing control circuits

For contractors maintaining legacy school or commercial HVAC systems

Tecumseh K90-97 Overload Relay 321142-301 The components are designed forThe Tecumseh K90 97 Overload Relay is a high precision thermal protection component engineered specifically for hermetic compressors in commercial refrigeration and HVAC systems. As a veteran technician knows, maintaining the integrity of the motor windings is critical; this external overload protector monitors current draw and temperature, safely interrupting the circuit before thermal runaway can damage the internal motor. It is a direct fit for