Precise Thermal Calibration: Factory-set 115-140F range provides accurate over-temperature protection without drift

Functioning as a Single-Pole Single-Throw (SPST) device

As a veteran-grade water heater limit switch

making it ideal for petroleum-based lubricants and hydraulic fluids

frequent tripping of the circuit breaker

Robertshaw 5300-146 Thermostat 30067439-890 Precise Thermal Calibration: Factory-set 115-140FThe Robertshaw 5300 146 is a heavy duty electric thermostat engineered for precise temperature management in commercial cooking equipment and industrial heating applications. This SJ 328 36 direct acting thermostat operates with an open high contact configuration, providing a critical safety boundary by interrupting power to the heating element once the set point is reached. With a broad temperature range of 100F to 450F (also rated up to 493F for