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Square D™ FSG2J21M4CP Water Pump Low Pressure Switch 30-50 PSI

This Square D Pumptrol pressure switch with 30-50 PSI pressure setting range activates an electrically driven water pump within a power circuit when the adjustable rising and falling thresholds are reached. The NEMA 1 enclosure has a 1/4" NPSF internal fluid connection and screw clamp terminals. The switch works with a 1.5 hp or less pump.
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Product Overview

Square D™ Water Pump Low-Pressure Cut Off Switch 30-50 PSI


  • Preset on at 30 PSI and off at 50 PSI
  • Standard action contacts open on rising pressure
  • Designed to control electrically driven water pumps and air compressors
  • Used on jet pumps, submersible pumps, and reciprocating pump applications
  • Works with 1.5 horsepower or less pump
  • Diaphragm actuated
  • 1/4" NPTF pressure connection
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