Robertshaw 5300-617 Thermostat

The Robertshaw 5300-617 is a heavy-duty single pole single throw (SPST) manual reset thermostat designed for high-limit temperature protection in commercial cooking equipment. Engineering for precision and durability, this Robertshaw 5300 series control features a temperature range of 140°F to 550°F (60°C to 288°C), making it a critical safety component for fryers, griddles, and ovens. The 60-inch copper capillary provides ample length for complex routing within the chassis, while the 3/16" x 11-5/8" nickel-plated bulb ensures rapid thermal response to prevent oil or surface overheating. This open-on-rise high limit thermostat acts as a fail-safe, interrupting the circuit when the high-temperature threshold is reached. Rated for 30 Amps at 250V AC, it handles high-draw resistive loads common in commercial kitchen environments. Installers should note the manual reset mechanism, which requires physical intervention to restore power, ensuring any over-temperature event is properly investigated for underlying mechanical failures.

• Precision Thermal Sensing: The nickel-plated copper bulb provides high conductivity for accurate high-limit sensing.
• Broad Compatibility: A direct replacement for various commercial fryer thermostats across multiple OEM brands.
• Heavy-Duty Electrical Rating: Capable of managing 30A resistive loads, reducing the need for secondary contactors in many applications.
• Extended Capillary Length: The 60-inch lead offers maximum flexibility for remote mounting in dense equipment bays.
• Manual Safety Reset: Ensures the system remains offline after a critical thermal event until a technician can verify equipment safety.

Is the Robertshaw 5300-617 compatible with millivolt systems?
No, this high-limit thermostat is designed for line voltage applications. For millivolt gas valves, you must use a dedicated millivolt-rated limit control or an ECO connector.

What causes the manual reset button to trip repeatedly?
If the 5300-617 is tripping, the primary regulating thermostat has likely failed in a closed position, or there is significant scale/carbon buildup on the heating elements causing localized hot spots.

Can the capillary tube be shortened if it is too long?
Never cut or kink the capillary. It contains a pressurized fluid charge; any breach of the tube will render the thermostat non-functional and require a full replacement.

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.