The Campbell Hausfeld 33MH71 pressure switch provides automatic on/off control for air compressors, activating at 135 psi and deactivating at 175 psi. This single-port unit is identified by model 33MH71 and is designed for Campbell Hausfeld systems requiring this 135/175 psi pressure-switch configuration. Use this switch to regulate the compressor motor in response to tank pressure by cycling power as the pressure reaches the setpoints.
