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Grey rectangular pressure switch with single port and unload valve, model 9013FH

SQUARE D

SQUARE D 9013FH Pressure Switch 120-150PSI 1Port Unload

SKU CH-GP8C-74873

Pressure switch for air compressors with a 120-150 psi on/off setting and 30 psi differential

  • Product typeLight Switch
  • Factory-set 120/150 psi range for immediate air-compressor control
  • 30 psi differential keeps motor cycling smooth and efficient
  • DPST contacts handle 1.5 hp at 120 V and 2 hp at 240 V single-phase
  • Single 1/4 in FNPS port simplifies plumbing on standard compressor tanks
  • NEMA 1 enclosure rated for indoor workshop environments

Pressure Switch 120-150 PSI

This Square D 9013FH pressure switch controls air compressor operation between 120 and 150 PSI. It features a 30 PSI differential and a factory-set on/off range. The unit uses a DPST contact form and carries a NEMA 1 rating. It is designed for standard action in compressed air systems.

Single Port 1/4 Inch Connection

The switch installs via a single 1/4 inch FNPS port. An integrated unloader valve releases head pressure on shutdown, reducing motor restart load. It supports up to 1.5 hp at 120V single phase and 2 hp at 240V single phase. Three-phase ratings reach 3 hp at 240V and 1 hp at 480V.

For Air Compressor Replacement

This component suits technicians replacing a failed pressure control on compatible air compressors. Buyers needing a different pressure range or multiple ports should look elsewhere. It is not a general-purpose light switch despite the catalog classification.

How it compares

Measured against everything we stock in Electrical Switches & Dimmers, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 64% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch

Questions about this item

How much does the 30 psi differential affect cut-in pressure when the compressor runs continuously?

The 30 psi differential means the switch cuts in at 120 psi and cuts out at 150 psi; sustained operation keeps cycling within this fixed 30 psi band.

What heat or noise should I expect from the NEMA 1 enclosure during all-day duty?

The NEMA 1 enclosure is rated for indoor use only and has no integrated cooling; heat and audible click come from the DPST contacts cycling at the 30 psi differential.

Which circuit breaker and wire gauge must I already have for the 2 hp 240 V single-phase rating?

A 240 V supply protected by a double-pole breaker and conductors sized for 2 hp single-phase motor load are required; the switch provides DPST contacts rated for that duty.

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