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A fryer hi-limit thermostat used in commercial fryer equipment to monitor oil temperature and interrupt operation if unsafe temperature levels are reached. This thermostat features a 450°F (232°C) temperature limit with a 30\" capillary tube and a 1/4\" x 4-1/2\" sensing bulb for temperature detection inside fryer systems. The auto-reset design allows the control to return to operation after temperature conditions normalize. The 3/8\" MPT stuffing box supports installation in compatible fryer equipment using millivolt control systems. This thermostat is used in commercial gas fryers to help manage high-temperature protection during cooking operation. Replacing a failed or inaccurate hi-limit thermostat may help restore proper temperature safety control and reduce shutdown issues caused by overheating conditions.

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Equipment Compatibility:
Applications for Atosa Fryer Hi-Limit Thermostats include commercial gas fryer systems used in restaurants, institutional kitchens, and foodservice cooking operations. This Fryer Hi-Limit Thermostat 301030005 is compatible with commercial equipment from leading brands such as Atosa, Vulcan Hart, Hobart, Avantco, Adcraft, Maxx Cold, and U-Line, and more, where fryer temperature limit control and overheating protection functions are required for operation.

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Brand Compatibility:
Replaces multiple part numbers across various commercial fryer equipment brands, including Atosa, Vulcan Hart, Hobart, Avantco, Adcraft, Maxx Cold, and U-Line. Refer to the “Replaces Parts” section for complete cross-reference details.

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Product Specifications:
Manufacturer: Atosa
SKU: 301030005
Product Type: Fryer Hi-Limit Thermostat
Temperature Rating: 450°F / 232°C
Capillary Length: 30\"
Bulb Size: 1/4\" x 4-1/2\"
Connection Type: 3/8\" MPT Stuffing Box
Reset Type: Auto Reset
Control Type: Millivolt
Application: Commercial Fryer Equipment

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Key Features:

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The fryer operation returned more normally after installation of the new thermostat.

", "shortDescription": "The Atosa 301030005 High-Limit Thermostat 450°F Cap 30\" activates when fryer temperature rises to a preset limit, interrupting power to heating elements. It senses excessive heat through its capillary tube and triggers a safety cutoff response within the appliance control circuit, avoiding further heating until the system is manually reset after cooling. Typically installed in fryer control housing or safety circuit assembly, the thermostat connects inline with the heating system to monitor temperature and shut off operation at high limits that should provide protection.", "technicalDetails": null, "productHighlights": null, "installationGuide": "

Step1: Turn off gas and electrical supply.

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Step2: Drain oil below the sensing bulb level.

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Step3: Access the thermostat housing and disconnect wiring.

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Step4: Remove the capillary bulb and mounting hardware.

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Step5: Install the new hi-limit thermostat, secure the bulb properly, reconnect wiring, and test safety cutoff.

", "troubleShootingGuides": null, "replacesParts": "ADCRAFT:LCCM2003000 ,LCCM200300000||ATOSA:301030005||AVANTCO:177400046 ,400046||ENTR?E:400046||HOBART:00-410840-00002 ,00-419670-00002 ,110840-2 ,119670-2 ,410840-00002 ,410840-2 ,419670-00002 ,419670-2||MAXX COLD:16031A||U-LINE:LCCM20030000||VULCAN HART:00-410840-00002 ,00-419670-00002 ,110840-2 ,119670-2 ,410840-00002 ,410840-2 ,419670-00002 ,419670-2 ,VH00-410840-00002 ,VH110840-2 ,VH410840-00002 ,VH410840-2 ,VH419670-2 ,VH5225-01K", "useBrandLayout": false, "brandSpecs": null, "compatibleModelsApiEnabled": false, "compatibleModelsJson": null, "compatibleModels": null, "compatibleModelNames": [], "hasCompatibleModels": false, "faqs": [ { "question": "Can a faulty Hi Limit Thermostat affect equipment performance?", "answer": "

Yes, a faulty thermostat can lead to unsafe operatHow to test a oven thermostat ing conditions, equipment damage, or even fires due to overheating. It's crucial to ensure the thermostat is functioning correctly to maintain safe and reliable operation.

" }, { "question": "Why is the Hi Limit Thermostat important?", "answer": "

The Hi Limit Thermostat is essential for preventing equipment overheating, which can lead to safety hazards, damage to the appliance, and potentially even fires. It helps maintain safe operating conditions.

" }, { "question": "How to test an oven thermostat?", "answer": "

To test an oven thermostat:

\r\n" }, { "question": "What maintenance is required for the Atosa 301030005 Hi-Limit Thermostat?", "answer": "

Regularly inspect the thermostat wiring and probe connection to ensure secure attachment and proper temperature sensing. Test the hi-limit function periodically to confirm it shuts off heating at the rated temperature to prevent overheating. Check for grease buildup or corrosion around the sensor area and clean gently when needed. Always disconnect power before servicing to maintain safe operation.

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\n Atosa 301030005 Fryer High-Limit Thermostat 450°F Cap 30"\n

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Description

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\n The Atosa 301030005 High-Limit Thermostat 450°F Cap 30\" activates when fryer temperature rises to a preset limit, interrupting power to heating elements. It senses excessive heat through its capillary tube and triggers a safety cutoff response within the appliance control circuit, avoiding further heating until the system is manually reset after cooling. Typically installed in fryer control housing or safety circuit assembly, the thermostat connects inline with the heating system to monitor temperature and shut off operation at high limits that should provide protection.\n
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