Air Compressor Pressure Switch — Three Phase, 1/4" BSP Ports, 180 PSI Max, 20 Amp, With 4-Port Manifold

Need to replace or upgrade the pressure switch on your three-phase air compressor?

This generic switch is a solid, no-frills option.

It’s rated for three-phase power, handles up to 20 amps, and can manage a maximum pressure of 180 PSI (12 bar).

The switch has a 1/4-inch BSP female port for the air inlet and three outlet ports on a small manifold, giving you flexibility for connecting hoses or gauges.

The housing is a strong plastic shell.

You’ll need to set the cut-in and cut-out pressures (typically adjustable between 90-120 PSI) to control when your compressor starts and stops automatically.

A crucial tip: when installing, make sure to use Teflon tape or pipe sealant on all the threads to prevent air leaks, and tighten all screws securely.

It’s a widely used component in home workshops, garages, and light industrial settings.

Just make sure the electrical specs match your compressor’s motor before buying.

A functional, affordable part to keep your air system running smoothly.