Viair 90-120 PSI Pressure Switch with 40A Relay


  • One of the best pressure switches on the market. Turns your compressors on when the pressure goes below 90 PSI and automatically turns off once the pressure reaches 120 PSI.

    You cannot make a warranty claim on your Viair Compressor without using this device.

    Tested to last over 10,000 cycles. These heavy duties, moisture resistant pressure switches come with built-in relays for longevity.

    Leads are pre-fitted with insulated 14in male push-to-connect terminals. Each lead wire is clearly labeled for easy electrical hook up.

    1. Moisture Resistant
    2. Built-In Relay
    1. One Viair 90/120 PSI Pressure Switch with Built-In Relay
    1. Part Number: PS-120R
    2. Ports: 1x ⅛″ NPT male
    3. Turn-Off Pressure: 120 PSI
    4. Restart Pressure: 90 PSI
    5. Voltage: 12 Volts DC
    6. Max Amps: 40 Amps
    7. Length: 4.25″ (107.95 mm)
    8. Width: 2.25″ (57.15 mm)
    9. Weight: 1 lb (0.45 Kg)


This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

.__seguno-banner-visible #shopify-section-header .header { margin-top: 50px; }