Robertshaw 5300-174 Thermostat

The Robertshaw 5300-174 Thermostat is a professional-grade high limit thermostat designed for precision temperature regulation in demanding commercial cooking and industrial heating applications. This SPST snap-action thermostat features a broad 150°F to 450°F temperature range, making it a critical component for fryers, ovens, and other high-heat equipment requiring a dependable safety or control interface. Engineered with a 24-inch tin-zinc plated capillary and a 3/8" x 4-1/2" nickel bulb, this 5300 series electric thermostat provides accurate thermal sensing even in corrosive environments. The integrated auxiliary switch provides additional control over secondary circuits, ensuring the unit functions as a versatile commercial kitchen thermostat replacement. Utilizing silver contacts and heavy-duty terminals, the mechanism is built to withstand 277V AC at 30A resistive loads, maintaining sustained accuracy and mechanical integrity throughout its service life.

• High-Temperature Precision: Supports a wide operating range from 150°F to 450°F for versatile application across various industrial heating controls.
• Durable Construction: Features a 24-inch tin-zinc plated capillary and nickel bulb for enhanced resistance against moisture and oxidation.
• Integrated Auxiliary Switch: The built-in switch allows for the simultaneous control of secondary components like indicator lights or fans.
• Robust Electrical Interface: Heavy-duty silver contacts provide reliable snap-action switching and long-term durability under high-amperage loads.
• Universal Mounting: Includes slotted mounting brackets for 1-1/8" to 1-3/4" dimensions and a 4-way Slip-Fit dial for seamless installation.

How do I calibrate the 5300-174 high limit thermostat?
To calibrate, hold the dial stem stationary and turn the internal adjusting screw. A quarter turn typically adjusts the setting by approximately 25 degrees, though specific equipment tolerances vary.

What is the difference between direct and reverse acting in this series?
The 5300-174 is a direct-acting (open on rise) control, meaning the circuit opens when the temperature exceeds the set point, which is standard for high-limit safety applications.

Can I use this to replace a model without an auxiliary switch?
Yes, this unit can replace standard models with similar thermal specifications. If the auxiliary switch is not required for your setup, it can simply be left disconnected.

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.