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Square D 9013FH pressure switch with four ports and unload valve

SQUARE D

SQUARE D 9013FH 120-150 psi 4 Port Unload Switch

SKU CH-TGDZ-B4WZN

Pressure switch for air compressors with 120-150 psi factory settings, 30 psi differential, four ports, and DPST contacts

  • Product typeLight Switch
  • Auto/Off manual control for compressor convenience
  • Factory set 120/150 psi cut-in and cut-out
  • 30 psi differential maintains steady tank pressure
  • Four 1/4 in FNPT ports simplify plumbing
  • DPST contacts handle up to 5 hp three-phase

Air Compressor Pressure Switch

This Square D 9013FH switch controls air compressors with a factory-set 120 to 150 psi range. It suits workshops and industrial sites needing automatic on/off pressure regulation for pneumatic tools and equipment.

30 psi Differential and Four Ports

The 30 psi differential provides a pressure band between 40 and 150 psi for stable cycling. Four 1/4 inch FNPS ports allow flexible plumbing for unloader valves, gauges and safety relief devices in a single manifold.

NEMA 1 Enclosure and DPST Contacts

A NEMA 1 rating protects the mechanism in dry indoor environments. Double-pole single-throw contacts handle up to 2 hp at 120 V single-phase, 3 hp at 240 V single-phase, 5 hp at 240 V three-phase and 1 hp at 480 V three-phase.

How it compares

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

Price $52.99
Pricier than about 60% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch

Questions about this item

Will the 9013FH switch work with my existing 2 hp single-phase 120 V compressor motor?

Yes, the switch is rated for 2 hp at 120 V single-phase, matching that motor size.

How can I verify the switch is cycling correctly after installation?

Watch the pressure gauge; the compressor should start at 120 psi and stop at 150 psi, giving a 30 psi differential.

Does the box include the unloader valve or just the switch body?

The switch has a built-in unloader valve; the four 1/4 in FNPS ports are on the switch itself, so no separate valve is needed.

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