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Rectangular grey pressure switch with four ports and lever on side

SQUARE D

SQUARE D 9013FHG24J27M1X pressure switch 80-100 psi 4-port

SKU CH-EQQ4-Q47GQ MPN 9013FHG24J27M1X

Controls air-compressor pressure at 80 to 100 psi with a four-port unloader and DPST contacts

  • Product typeLight Switch
  • Controls compressor at 80-100 psi factory settings
  • 20 psi differential prevents rapid cycling
  • DPST contacts handle 2 hp at 120 V single-phase
  • Supports 3 hp at 240 V and 5 hp at 240 V three-phase
  • Four 1/4 in FNPT ports with unloader valve included

Pressure switch for air compressors

The Square D 9013FHG24J27M1X is a pressure switch built for air compressor systems. It controls motor operation between factory-set 80 and 100 psi cut-in and cut-out points. The DPST contact form handles single-phase loads up to 2 hp at 120 V and 3 hp at 240 V, plus three-phase ratings at 240 V and 480 V. It suits installers needing a direct replacement or new-build component.

Four-port manifold with unloader valve

Four 1/4-inch FNPS ports allow the switch, tank gauge, safety valve and discharge line to connect at one block. The integrated unloader valve bleeds head pressure when the motor stops, reducing restart torque on the compressor. Manual Auto/Off lever gives local override without rewiring. A 20 psi fixed differential keeps cycling predictable across the 20 to 100 psi adjustable range.

NEMA 1 enclosure for indoor mounting

The NEMA 1 rating means the enclosure protects contacts from falling dirt in dry indoor locations. Compact Series 9013FH body fits standard compressor manifolds without special brackets. Screw terminals accept solid or stranded conductors for reliable field wiring. The switch is not suited for outdoor, wash-down or hazardous-area installations where a higher NEMA rating would be required.

How it compares

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Price $60.99
Pricier than about 63% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Model name9013FHG24J27M1X
Product typeLight Switch

Questions about this item

How often should the 9013FHG24J27M1X contacts and unloader valve be inspected and when must the switch be replaced?

Inspect the contacts and unloader valve annually; replace the unit if the cut-in drifts below 80 psi or the cut-out exceeds 100 psi.

What pressure limit stops the compressor first during continuous running?

The factory cut-out setting of 100 psi is the limit that opens the DPST contacts and shuts off the motor.

How much heat does the switch generate when the compressor cycles all day at 240 V single phase?

The NEMA 1 enclosure dissipates the heat from a 3 hp motor load; the switch itself adds negligible temperature rise in normal operation.

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