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With its power-limited circuit designation per NEC Article 725
This component is designed for inductive load switching
you know that dielectric union repair is critical for preventing galvanic corrosion between dissimilar metal pipes
Its compact profile makes it an ideal fit for smaller OEM boiler cabinets where space is limited
McDonnell & Miller FS4-3 Switch Refrigerant With its power-limited circuit designationFor contractors requiring reliable system protection, the McDonnell & Miller FS4 3 (Part Number 114400) is a heavy duty general purpose liquid flow switch designed to monitor flow in heating, cooling, and water process lines. This 1" NPT unit features a single pole, double throw (SPDT) configuration, allowing you to easily integrate signal lights, alarms, motors, or burners into the control circuit. Engineered to operate at a max pressure of 160 PSI
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