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Gray Square D 9013FH pressure switch, boxy form, single port, DPST contacts, 135-175 psi range

SQUARE D

SQUARE D 9013FH pressure switch 135-175 psi DPST 10A

SKU CH-37RZ-E29M0

Controls air-compressor motor at 135-175 psi with DPST 10 A contacts rated for up to 5 hp three-phase

  • TypeLight Switch
  • Color/FinishGray
  • Controls 135-175 psi air compressor pressure
  • DPST contacts handle 10 A motor loads
  • Factory calibrated 40 psi differential range
  • NEMA 1 enclosure suits indoor installations
  • Operates from -22 °F to 257 °F

135-175 psi air compressor switch

The Square D 9013FH pressure switch controls single-port air compressors with a factory set range of 135 to 175 psi. It uses a DPST contact form rated at 10 amperes and a 1/4 inch FNPS port connection. The unit operates without an unloader valve and carries a NEMA 1 rating for indoor use.

40 psi differential and 60-200 psi range

The switch differential is fixed at 40 psi between cut-in and cut-out points. Adjustment stays within the broader 60 to 200 psi range, but the factory calibration targets the 135/175 psi band. Standard action means the contacts open on pressure rise and close on pressure fall without manual override.

Motor ratings up to 5 hp three-phase

At 120 volts single-phase the switch handles 2 hp, at 240 volts single-phase 3 hp, and at 240 volts three-phase 5 hp. The 480 volt three-phase rating is 1 hp. Operating temperature spans -22 to 257 degrees Fahrenheit, so extreme cold or heat beyond those limits will stop reliable operation.

Highlights

  • Controls 135-175 psi air compressor pressure
  • DPST contacts handle 10 A motor loads
  • Factory calibrated 40 psi differential range
  • NEMA 1 enclosure suits indoor installations
  • Operates from -22 °F to 257 °F

Specifications

BrandSquare D
TypeLight Switch
Color/FinishGray

Questions about this item

Which pressure range should I choose for my compressor?

This switch is factory set to cut in at 135 psi and cut out at 175 psi with a fixed 40 psi differential, so choose it when your system needs that exact on/off window.

What does the 10 A rating mean for my motor?

The contacts are rated 10 A and can directly control up to 2 hp at 120 V single-phase, 3 hp at 240 V single-phase, 5 hp at 240 V three-phase or 1 hp at 480 V three-phase.

How does the 1/4 inch FNPS port connect to my tank?

The single 1/4 inch FNPS port threads directly into a matching tank fitting; no unloader valve is built in, so plumb the pressure line to this port only.

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