3/8" MPT High Limit Switch 176°F Brass - 3914
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This brass high limit switch is a temperature safety device for pressure washers. It threads into the plumbing with a 3/8" MPT connection and opens an electrical circuit when the water reaches 176°F. That shuts down the burner or motor before overheated water can damage the system. The most common cause of overheating is a machine left running in bypass. With the trigger released, the same water recirculates through the pump and keeps heating up, which can quickly ruin seals, packings, and other components. The high limit switch cuts power before that happens, protecting the pump and helping prevent burns from scalding water. It’s rated for 15A at 110V and 10A at 220V, so it can handle typical pressure washer control circuits.
Key features:
- High limit temperature safety switch
- Trips at 176°F
- 3/8" MPT connection
- Brass body
- Electrical rating: 15A at 110V, 10A at 220V
- Helps protect pumps and seals from overheating in bypass