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Industrial Strength Housing: The UV-resistant
Simplified Installation: The Relay in a Box design eliminates the need for separate sockets or external enclosures
The internal fusible element is designed to melt and lose structural integrity to close the valve when temperatures reach approximately 165°F
Code Compliance: Facilitates NEC Article 430-32 compliance for motor branch-circuit overcurrent protection when sized according to manufacturer charts
McDonnell & Miller 157S-P Controller 322838-754 Industrial Strength Housing: The UV-resistantThe McDonnell & Miller 157S P Controller (Part #175802) is a precision engineered combination low water cut off and pump controller designed for commercial and industrial steam boilers of any steaming capacity. As the direct replacement for the legacy McDonnell & Miller 157S, this unit integrates a manual reset mechanism to ensure rigorous safety protocols in the event of a low water condition. Featuring a robust Monel bellows for superior corrosion
