The Robertshaw 5225-047 is a heavy-duty LCH series manual reset limit control designed for critical over-temperature protection in commercial cooking and HVACR applications. Engineered as a fixed high limit switch, this component features a factory-calibrated trip point at 450°F (232°C) to ensure system safety by interrupting the power circuit upon reaching the thermal ceiling. The assembly includes a 24-inch capillary and a 3/16" x 7-5/8" nickel-plated copper bulb, providing superior corrosion resistance and thermal sensitivity in demanding kitchen environments. This SPST break-on-rise control is built with a negative biased power element diaphragm, specifically designed to fail-safe by opening the circuit if the capillary loses pressure integrity. Rated for 30 Amps at 125-480V AC, the manual reset limit thermostat is a standard replacement for Henny Penny equipment (#16738) and other high-capacity fryers or appliances requiring a "trip-free" safety mechanism. Its M2 switch type ensures the control cannot be bypassed or reset while the reset button is actively depressed, maintaining a strict safety boundary for field installations. Key Benefits: Corrosion Resistance: Features a nickel-plated copper bulb and capillary to withstand harsh caustic environments and high-heat cycles. Fail-Safe Engineering: Designed with a negative-biased diaphragm that triggers a safety shutdown if the sensing element is damaged. High Electrical Capacity: Robust 30A SPST switch handles high-voltage loads up to 480V AC without the need for additional contactors in many configurations. Trip-Free Reset: The manual reset mechanism prevents the unit from maintaining an "on" state if the reset button is held down during an over-temp condition. Common Questions: What is the reset type for the Robertshaw 5225-047? This is a manual reset (M2) control, meaning the technician must physically press the button to restore the circuit after a 450°F trip occurs. Can the 450°F temperature setpoint be adjusted? No, this part is a fixed temperature limit, factory-calibrated for precision and to prevent unauthorized field tampering with safety settings. Is this control compatible with 24V systems? Yes, while rated for high voltage, it is also approved for 35 VA pilot duty at 24V AC applications. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
