York S1-373-13300-604 Limit Switch 30067439-890 High MOPD Rating: Engineered to

High MOPD Rating: Engineered to open reliably under high pressure differentials common in R-410A systems

This part number typically refers to the pilot burner assembly

provided the 480V service and 70W heat profile are technically appropriate for the application

This rating indicates the specific suction or positive pressure required to actuate the internal diaphragm and close the electrical circuit

Super Slim Jim universal replacement thermocouple specifically engineered for high-performance gas valves

York S1-373-13300-604 Limit Switch 30067439-890 High MOPD Rating: Engineered toFor service technicians managing 3 to 6 ton rooftop units, the York S1 373 13300 604 Limit Switch is a critical safety component designed for high limit protection. This HVAC auto reset limit switch is engineered to monitor primary heat exchanger temperatures, featuring a precise 105 165F temperature range. When discharge temperatures exceed the 165F threshold, the switch opens the control circuit to prevent thermal overloading, automatically