Duke 212081 KA Thermostat W/ 1/4" X 7-9/16" Bulb Auxillary Switch

A commercial temperature control thermostat used to control heat in foodservice equipment, this part helps keep temperatures accurate and steady during use. It has a KA-type design with an adjustable range from 140°F to 500°F, so users can set the heat as needed. The 1/4" x 7-9/16" sensing bulb, combined with a 48" capillary tube, monitors internal temperature and transmits signals for rapid adjustments, while the integrated auxiliary switch provides additional control capability. This thermostat is important for keeping heat steady in equipment like steam tables and food holding units. It helps prevent temperature changes that can affect food quality and kitchen efficiency. If the thermostat stops working properly or becomes inaccurate, replacing it can restore reliable temperature control, improve performance, and keep daily operations running smoothly.

Equipment Compatibility:
Practical heating control applications for Duke KA Thermostat include commercial food warmers, steamtables, and prep units that need accurate temperature control. This KA Thermostat 212081 is compatible with commercial equipment from leading brands such as Duke and U-Line, and more, where steady and controlled heating is needed for consistent performance.

Brand Compatibility:
Replaces multiple part numbers across various commercial foodservice equipment brands, including Duke and U-Line. Refer to the “Replaces Parts” section for complete cross-reference details.

Product Specifications:
Product Type: Thermostat (KA Type)
Manufacturer: Duke
SKU: 212081
Temperature Range: 140°F to 500°F
Bulb Size: 1/4" x 7-9/16"
Capillary Length: 48"
Switch Type: Auxiliary switch included
Mounting: Mount type 1
Dial Compatibility: Dial #22-1262

Key Features:

• Allows adjustable heat control from 140°F to 500°F for accurate temperature settings.
• The 1/4" x 7-9/16" bulb with an extended 48" capillary ensures prompt and consistent temperature measurement.
• Built-in auxiliary switch provides extra control within the heating system.
• Helps keep heat levels steady for better food holding and preparation.
• Helps return the equipment to proper working condition after installing a new thermostat in place of a faulty one.
• Suitable for commercial equipment that needs reliable temperature control.
• Maintenance feedback:
• “Heat control is steady and reliable, with improved performance during continuous use.”

• DUKE:2081 ,2081-2 ,212081 ,DUK212081||U-LINE:5300-02G ,KA-604-24 ,KA604-24

Step1: Ensure the appliance is powered off before beginning installation.

Step2: Remove the old thermostat, noting wire connections and mounting position.

Step3: Position the new thermostat and attach the bulb and capillary correctly.

Step4: Reconnect all wires to match the original setup.

Step5: Secure the thermostat in place, restore power, and test temperature control.

• What maintenance is required for the Duke 212081 Thermostat?

  Keep the thermostat and bulb clean and free from dust, grease, or debris. Inspect wiring and the auxiliary switch for secure connections. Perform calibration checks to ensure accurate temperature control, and always disconnect power before handling components.

• What are common issues with the Duke 212081 Thermostat?

  • Inconsistent oven temperature control.
  • Heating elements cycle irregularly or fail to turn on.
  • Physical damage to bulb or auxiliary switch.
  • Faulty or loose electrical connections causing operational errors.