Once the original seal is compressed and heat-cycled

Precise Thermal Cutout: Calibrated to 210 degrees F to provide immediate circuit interruption during unsafe flame rollout events

This switching relay features a 30A resistive load rating at 60Hz

whereas a safety valve is typically a "pop-action" device used for compressible fluids like steam or air

For contractors managing HVAC high altitude kits

York S1-025-22273-003 Limit Switch Once the original seal isThe York S1 025 22273 003 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in high performance HVAC systems. This SPST automatic reset limit switch is calibrated to open the electrical circuit at 160F, effectively halting operation to prevent heat exchanger damage or unsafe conditions. Once the induction or blower housing temperature stabilizes and drops to the 120F close setpoint, the switch automatically