Robertshaw 5225-009 Limit Control

The Robertshaw 5225-009 is a heavy-duty, manual reset high-limit control engineered for precision high-temperature protection in commercial cooking equipment. Rated for a fixed trip point of 450°F (232°C), this SPST switch acts as a critical safety thermal cutout, interrupting the electrical circuit should temperatures exceed safe operating parameters. It features a 30-inch copper capillary and a 3/16" x 11-5/8" nickel-plated bulb, providing versatile mounting options within the heat zone. Designed for high-amperage applications, it handles 30 Amps at 120/240V AC and 25 Amps at 277V AC. This LCH Series limit switch is often found in deep fat fryers and griddles, ensuring equipment longevity and operator safety by preventing thermal runaway. When diagnosing a 450-degree high limit trip, technicians should inspect the primary thermostat for calibration drift before resetting this control.

• Direct OEM Replacement: Seamlessly replaces commercial fryer limit controls across multiple brands including Frymaster, Southbend, and Anets.
• Manual Reset Mechanism: Ensures the technician must investigate the cause of the overheat condition before the equipment can be returned to service.
• Durable Construction: Features a rugged nickel-plated bulb and 30-inch capillary to withstand the harsh environments of commercial kitchens.
• High Electrical Capacity: Rated for 30 Amps, eliminating the need for additional contactors in many direct-load configurations.

How do I test the Robertshaw 5225-009 for continuity?
With the appliance power disconnected and the reset button depressed, check for 0 ohms across the terminals. If the circuit is open at room temperature after pressing the reset, the internal diaphragm has likely failed.

Is this limit control suitable for steam or water applications?
This specific model is calibrated for air and oil temperatures up to 450°F. Using it in water or steam applications may lead to premature bulb erosion or inaccurate tripping points if the medium is not compatible with nickel-plating.

What causes a frequent trip on a 450F high-limit control?
Repeated tripping usually indicates the primary operating thermostat has stuck closed, or there is significant scale buildup on the heating elements causing localized hotspots near the bulb.

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.