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the DFM series functions as both a pump up/pump down controller and a low-water cutoff
Common Questions: Can I use a single-stage switch to replace this 2-stage model
It features a dual 0 to 10 VDC and 0 to 20 mA analog output
Replacement involves disconnecting the oil connector tube
Vibration Reduction: Precision-balanced aluminum construction reduces mechanical stress and operational noise in residential HVAC units
MDI Mercury Displacement 35NO-24A Contactor 326058-756 the DFM series functions asThe MDI Mercury Displacement 35NO 24A Contactor is a heavy duty single pole normally open 24V switching solution designed for high cycle industrial and HVACR environments. Built for reliability where standard electromechanical relays fail, this 35 amp mercury relay utilizes a liquid mercury contact interface to provide a fresh conduction surface for every cycle. This displacement technology significantly reduces contact pitting and oxidation, making
