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Replacement High Limit Switch (135°F) for Pentair Sta-Rite MasterTemp & Max E Therm Pool Heaters
Replaces Part No. 42001-0063S & STA-151-6255
Compatibility: Pentair MasterTemp (All Models) & Max-E-Therm (Models SR200, SR333, SR400) Heaters
Manufactured by Optimum Pool Technologies

The Pentair Sta-Rite High Limit Switch is an important switch in your Max-E-Therm or MasterTemp pool heater, and is used to detect when your water temperature has exceeded a safe level (135°F) and immediately opens the heat exchanger outlet when that happens. You MasterTemp heater will indicate when it is time to replace the High Limit Switch when the “HLS” LED is displayed.

Specifications:

Manufacturer: Optimum Pool Technologies
Model: OPT-0063S