Kleinn 2121 Sealed Tank Mount Pressure Switch - 1/4in M NPT (90 PSI On / 120 PSI Off)

The Kleinn 2121 is a heavy-duty, sealed pressure switch designed to automate onboard air systems by regulating tank pressure between 90 PSI and 120 PSI. This switch automatically signals the compressor to activate when pressure drops and shut off once the target is reached, ensuring a consistent air supply for pneumatic accessories.

Engineered for durability in demanding environments, the 2121 features a standard 5% PSI variance tolerance and is optimized for use with the 6260RC air compressor. To ensure system longevity and safety, it is designed to trigger a required 30-amp SPDT relay (such as Kleinn Model 340) to manage the electrical load of the compressor motor.

• Manufacturer Part Number: 2121
• Fitting Size: 1/4" NPT (Male)
• Pressure Range: 90 PSI On / 120 PSI Off
• Tolerance: 5% PSI variance
• Maximum Load: 20 Amps
• Operating Voltage: 12V DC

For maximum system protection, it is recommended to pair this switch with a 145 PSI safety relief valve (SKU 52145) installed directly on the air tank to prevent compressor burnout in the event of a switch failure.