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SQUARE D

SQUARE D 9013GH Pressure Switch 100-125PSI 1Port Unload

SKU CH-CAXC-7SXQ3

Controls water or air pressure from 100 to 125 psi with a single 3/8 in FNPS port and unloader, rated NEMA 1 for standard action

  • TypeLight Switch
  • Factory-set 100/125 psi for immediate operation
  • DPST contacts switch two circuits simultaneously
  • NEMA 1 rating suits indoor installations
  • Handles 2 hp at 120 V single-phase
  • Unloader valve eases compressor restart

Pressure switch for air and water systems

The Square D 9013GH pressure switch controls air compressors and water pumps with a factory on/off setting of 100/125 psi and an adjustable differential of 20 to 40 psi. It operates across a pressure range of 40 to 200 psi and carries a NEMA 1 rating for indoor use. DPST electrical contacts switch single-phase loads up to 2 hp at 120 V or 3 hp at 240 V and three-phase loads up to 5 hp at 240 V or 480 V.

Single-port mounting with integrated unloader

A single 3/8 in FNPS port connects directly to the tank or line, while a 1/4 in compression unloader fitting vents head pressure for easier motor restart. The standard action mechanism requires no manual lever, so the switch responds automatically to pressure changes. Compact DPST contacts fit in tight enclosures without additional hardware.

Replaces worn switches on existing compressor

Installers can swap out failed units without re-plumbing when the port size and pressure band match the original specification. The jump is worth it when the old switch drifts outside the 20 to 40 psi differential or can no longer handle the motor’s horsepower rating. Buyers needing multi-port manifolds or outdoor-rated enclosures should look elsewhere.

Highlights

  • Factory-set 100/125 psi for immediate operation
  • DPST contacts switch two circuits simultaneously
  • NEMA 1 rating suits indoor installations
  • Handles 2 hp at 120 V single-phase
  • Unloader valve eases compressor restart

Specifications

BrandSquare D
TypeLight Switch

Questions about this item

What is the factory on/off pressure setting range of the 9013GH switch?

The 9013GH pressure switch is factory set to turn on at 100 psi and off at 125 psi, with an adjustable differential range of 20 to 40 psi.

What port size and type does the 9013GH pressure switch require for mounting?

It features a single 3/8 inch FNPS port for the pressure connection and a 1/4 inch compression fitting for the unloader valve.

How is the 9013GH pressure switch wired for a single-phase 240V motor?

The switch uses DPST contacts rated for 3 hp at 240V single-phase; connect the motor leads to the load terminals and the power supply to the line terminals.

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