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00" WC fixed switch to match the exact static pressure requirements of the original heat exchanger design
As a Normally Open (N/O) pressure switch
This DPST (Double Pole Single Throw) unit is designed for 208-277V electrical systems and is housed in a rugged NEMA 3R case
with a reset at 115°F
McDonnell & Miller 67-LQHU Low Water Cut Off Els PW 29614 00" WC fixed switch toThe McDonnell & Miller 67 LQHU (Part Number 149500) is a field proven mechanical low water cut off engineered specifically for residential and commercial steam boiler applications. Operating as a float type safety control, this unit is designed to interrupt the electrical circuit to the burner if water levels drop below the safe operating line, preventing catastrophic dry fire conditions. The 67 LQHU model is identical to the 149500 and features a 3
US$ 49.99
US$ 39.99
US$ 89.00
