Robertshaw 5300-671 Thermostat

The Robertshaw 5300-671 is a heavy-duty electric thermostat designed for demanding commercial foodservice applications. This KX series control features a temperature range of 300°F to 700°F (149°C to 371°C), making it ideal for high-heat equipment such as pizza ovens and commercial broilers. Engineered with a 5-foot capillary and a 3/16" x 11-1/2" nickel-plated bulb, this unit ensures precise thermal sensing even in deep-well configurations. The SPST break-on-rise (Open-on-High) switch configuration is rated for 25 Amps at 250V AC, providing the switching capacity required for high-wattage heating elements. Technicians value the 5300-671 for its 4-way mounting position flexibility and its ability to replace multiple OEM high-limit and primary control configurations. When performing a field replacement, ensure the ambient compensated housing is properly cleared of debris to maintain calibration accuracy across the entire 700-degree operating spectrum.

Key Benefits for Contractors

• High-Temperature Range: Operates from 300°F to 700°F, meeting specifications for specialized high-heat cooking equipment.
• Durable Construction: Features a 60-inch armored capillary for protection against physical damage in tight chassis runs.
• Universal Mounting: The KX-617-60 style mounting allows for vertical or horizontal installation without affecting calibration.
• High Amperage Rating: Rated for up to 25 Amps, reducing the need for external contactors in many direct-load setups.

Common Installation Questions

Can the capillary be trimmed if it is too long for the unit?
No, the 5-foot capillary creates a sealed hydraulic system. Cutting it will destroy the thermostat. Excess length should be carefully coiled away from heating elements.

Does this unit include the dial and mounting hardware?
This is the thermostat body and sensing bulb. While it features a standard D-stem, existing dials should be checked for compatibility with the 300-700 degree scale.

Is this thermostat suitable for deep fat fryers?
While the temperature range is high enough, the 5300-671 is typically used for ovens and broilers. Verify your specific equipment's millivolt or high-voltage requirements before installation.

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.