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Yellow Square D 9013FH pressure switch with four ports

SQUARE D

SQUARE D 9013FH 135-175 psi 4-Port Pressure Switch

SKU CH-DPHE-Q6W00

A 135-175 psi pressure switch with four ports and unloader for air compressor control

  • Product typeLight Switch
  • Color and finishYellow
  • Pressure range 60 to 200 psi covers many compressors
  • Factory set at 135 psi on and 175 psi off
  • 40 psi differential reduces short-cycling
  • DPST contacts handle 120 V, 240 V and 480 V supplies
  • NEMA 1 enclosure suits indoor installations

9013FH 4-Port Pressure Switch

This Square D 9013FH pressure switch controls air compressors with a factory-set 135-175 psi range. It features four 1/4 in FNPS ports and a manual Auto/Off lever for direct operation. The DPST contact form handles single-phase motors up to 2 hp at 120 V or 3 hp at 240 V. Three-phase ratings reach 5 hp at 240 V and 1 hp at 480 V.

NEMA 1 Enclosure and 40 psi Differential

The NEMA 1 rated housing is intended for indoor use in dry environments. A fixed 40 psi differential separates the cut-in and cut-out pressures across the 60-200 psi adjustable range. Standard action contacts open on pressure rise to stop the motor. The built-in unloader valve vents head pressure for easier restarts.

135-175 psi Factory Setting for Compressor Cut-Out

The switch ships calibrated to start the compressor at 135 psi and stop at 175 psi. This preset suits many single-stage pumps without further adjustment. Installers can shift the range between 60 and 200 psi if the application demands different cut-in or cut-out points.

How it compares

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Price $50.99
Pricier than about 58% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch
Color and finishYellow

Questions about this item

How do I wire the four 1/4 in FNPS ports and the DPST contacts on this 9013FH switch?

Connect the compressor lines to the four 1/4 in FNPS ports, then wire the DPST contacts to the motor circuit matching the voltage — 120 V, 240 V or 480 V — and phase shown in the HP ratings.

What maintenance will the unloader valve and pressure settings need over time?

Check the unloader valve for leaks and verify the 135 psi cut-in and 175 psi cut-out pressures remain accurate; the 40 psi differential is factory set and not adjustable.

At what pressure or temperature limit does the NEMA 1 enclosure become the limiting factor during continuous cycling?

The NEMA 1 rating protects against dust and light splashes only; sustained high humidity or direct water spray will degrade the enclosure before the 60 to 200 psi range is exceeded.

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