Schneider Electric 9013FHG42J55M1X Pressure Switch

Schneider Electric's Square D 9013FHG42J55M1X is a single-port Pumptrol pressure switch (Class 9013, Type FHG) with a 1/4" FNPS connection and DPST contacts, designed to automatically start and stop a motor-driven pump or compressor. It operates on a fixed pressure window of 110–150 psi (pressure code J55), providing a 40 psi differential between cut-in and cut-out for reliable cycling in demanding applications. The switch is rated for up to 575 VAC and 1 HP, making it suitable for medium-power motor control in HVAC, pumping, and industrial equipment. The M1 suffix indicates a built-in manual cut-off switch for safe testing or servicing without bypassing automatic control. Built to fit the standard 9013 family footprint, this version combines robust diaphragm sensing with durable electrical contacts to withstand industrial environments and provide precise, repeatable switching within the 110–150 psi range.