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Grey metal pressure switch with single threaded port and lever on side

SQUARE D

SQUARE D 9013FH Pressure Switch 60-80 PSI Unload

SKU CH-F45B-8QQVE

Controls air compressor pressure between 60 and 80 psi with a 20 psi differential and DPST contacts

  • Product typeLight Switch
  • Controls air compressor at 60 to 80 psi
  • DPST contacts handle 1.5 hp at 120V
  • NEMA 1 enclosure suits indoor mounting
  • 1/4 in MNPT port connects directly
  • 20 psi differential keeps cycling stable

Square D 9013FH Pressure Switch 60-80 PSI

The Square D 9013FH is a pressure switch designed to control air compressors. It manages motor operation between 60 and 80 psi with a 20 psi differential. The unit features a 1/4 inch MNPT port and DPST electrical contacts rated for single and three-phase motors up to 480V. A built-in unloader valve is included.

For compressor systems needing factory-set 60/80

This switch suits installations where the standard 60 to 80 psi range matches the compressor design. It is not for systems requiring adjustable cut-in or cut-out pressures outside the 20 to 100 psi range. Buyers who need a different port size or a switch without an unloader valve should look elsewhere.

Direct threading onto 1/4 inch MNPT compressor ports

Installation involves threading the single port onto the compressor tank or manifold and wiring the DPST contacts to the motor circuit. The factory settings of 60 psi on and 80 psi off are not adjustable. A common issue is leaks caused by insufficient thread sealant or over-tightening the fitting.

How it compares

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Price $29.99
Cheaper than about 62% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch

Questions about this item

What compressor motor voltage and phase must I have so the 9013FH switch can control it directly?

The switch is rated for 1½ hp at 120 V single-phase, 2 hp at 240 V single-phase, 3 hp at 240 V three-phase, and 1 hp at 480 V three-phase.

Will the 60-80 psi factory setting work with my existing tank that was previously run at a lower cut-in pressure?

The differential is fixed at 20 psi and the adjustable range spans 20 to 100 psi, so you can re-set the cut-in and cut-out pressures to match the tank's original range.

How can I verify the unloader valve is functioning after I install the switch?

When the compressor reaches 80 psi and the switch opens, you should hear a brief hiss from the unloader port as it vents the head pressure.

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