Robertshaw 5300-235 Thermostat

The Robertshaw 5300-235 is a heavy-duty Electric Thermostat from the 5300 series, engineered specifically for high-standard commercial cooking and industrial heating applications. This SPST (Single Pole Single Throw) control operates with an open-high switch configuration, meaning the circuit opens on temperature rise. It features a broad temperature range of 100°F to 450°F (38°C to 232°C), making it a reliable direct acting thermostat for fryers, griddles, and ovens. The assembly includes a 12-inch capillary tube and a 3/16" x 11-5/8" bulb constructed from tin-zinc plated copper for enhanced thermal conductivity and corrosion resistance. Designed for precise thermal regulation, the 5300-235 utilizes a mechanical diaprhagm for consistent operation without the need for external power. This Robertshaw component serves as a critical high-limit control or primary temperature regulator in professional kitchens, ensuring equipment maintains exact setpoints under heavy usage cycles.

• Universal high-temperature range: Covers 100°F to 450°F, ideal for diverse commercial food service equipment.
• Rugged construction: Features a tin-zinc plated bulb and capillary for durability in high-moisture or greasy environments.
• Direct-acting SPST switch: Provides reliable circuit interruption upon reaching the designated temperature setpoint.
• Flexible installation: The 12-inch capillary allows for versatile mounting within compact equipment chassis.
• Mechanical precision: Utilizes a liquid-filled sensing element for accurate HVACR temperature sensing without electronic interference.

Common Contractor Questions:

What is the switch action for the Robertshaw 5300-235?
This model utilizes a Single Pole Single Throw (SPST) mechanism that is "Open High," meaning the electrical contacts open to kill power when the temperature climbs to the setpoint.

Can the capillary tube on the 5300-235 be shortened?
No, the 12-inch capillary tube is a sealed system containing pressurized fluid. Kinking, cutting, or shortening the tube will cause the thermostat to fail immediately.

What are the electrical ratings for this thermostat?
The 5300 series is typically rated for 25 Amps at 250V AC, though you should always verify the specific amperage draw of your heating element against the OEM specifications.

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.