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Our HornBlasters Weatherproof Pressure Switch with 40A Relay is built to perform in harsh conditions and keep your air system running strong. Available in 90-120 PSI, 110-150 PSI, 145-175 PSI, and 165-200 PSI ranges, each switch is fully encased and sealed with weatherproof sealant to protect it against the elements. The built-in 40A relay makes installation simple and clean—no extra wiring needed.
This pressure switch automatically turns your compressor on when tank pressure drops to the lower limit and shuts it off when it reaches the upper limit—no guesswork, no hassle.
| Part Number | PS-120H, PS-150H, PS-175H, PS-200H |
| Ports | 1x ¼″ NPT male |
| Turn-Off Pressure | 120 PSI, 150 PSI, 175 PSI, 200 PSI |
| Restart Pressure | 90 PSI, 110 PSI, 145 PSI, 165 PSI |
| Voltage | 12 Volts DC |
| Max Amperage | 40 Amps |
| Length | 3.40″ (86.36 mm) |
| Width | 1.25″ (31.75 mm) |
| Height | 1.34" (34.04 mm) |
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 www.p65warnings.ca.gov.
If you’re new to horns or horn kits, our First-Time Buyer’s Guide is a great place to learn what to expect, how to install your kit, and how to choose the right setup. Our Install Gallery is also a great resource for getting inspiration for your application.
