Markel 57640006 Limit
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Markel 57640006 Limit

Markel 57640006 Limit

When you are troubleshooting a unit that is short-cycling or throwing a thermal trip code, you need a high-temperature safety that reacts with precision. The Markel 57640006 Limit Control is a professional-grade L240F auto reset limit switch designed specifically for demanding industrial heating and commercial HVAC maintenance. This bimetal disc thermostat features a 240-degree Fahrenheit fixed setting, serving as a critical protection device against heat exchanger overheating in electric heaters and 5100 series forced-air systems. The integrated capillary sensing tube and capillary cap ensure rapid detection of localized temperature spikes, pulling the circuit before components sustain damage.

For contractors, the auto-reset functionality of the Markel 57640006 is a significant advantage, allowing the equipment to restore operation once temperatures drop below the safety threshold without requiring a manual service call for a simple reset. This HVAC replacement part is built with a compact footprint, making it the go-to limit switch with capillary for tight cabinet installs where clearance is a factor. Its robust construction ensures long-term reliability in industrial machinery and conveyor heating applications, maintaining the narrow tolerances required for safety compliance and system longevity.

Key Benefits for Technicians
  • Fixed Thermal Cutout: Opens reliably at 240°F to prevent cabinet and component overheating.
  • Automatic Reset: De-escalates service calls by restoring the circuit once safe temperatures are reached.
  • Capillary Design: Equipped with a protective cap and sensing tube for precise monitoring of plenum air.
  • High Compatibility: Direct OEM fit for TPI and Markel 5100 series heaters up to 5 kW.
  • Compact Housing: Optimized for installation in confined industrial control boxes and HVAC cabinets.
Common Questions

Is the Markel 57640006 a manual or auto-reset type?
This is an automatic reset switch. It will open the circuit at 240°F and close it again automatically when the temperature falls back to the reset differential.

Can I use this for any furnace high-limit application?
While it is used across various industrial machinery, always verify the temperature rating and mounting style. This unit is rated for 240°F and is a standard replacement for specific Markel/TPI heater models like the F1F5103N.

What causes this limit switch to trip frequently?
Repeated trips are usually caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed return vents. If the switch trips, prioritize checking the system's static pressure and air movement.

This item is not eligible for free shipping.

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.

$77.03
Markel 57640006 Limit
$77.03

Markel 57640006 Limit

When you are troubleshooting a unit that is short-cycling or throwing a thermal trip code, you need a high-temperature safety that reacts with precision. The Markel 57640006 Limit Control is a professional-grade L240F auto reset limit switch designed specifically for demanding industrial heating and commercial HVAC maintenance. This bimetal disc thermostat features a 240-degree Fahrenheit fixed setting, serving as a critical protection device against heat exchanger overheating in electric heaters and 5100 series forced-air systems. The integrated capillary sensing tube and capillary cap ensure rapid detection of localized temperature spikes, pulling the circuit before components sustain damage.

For contractors, the auto-reset functionality of the Markel 57640006 is a significant advantage, allowing the equipment to restore operation once temperatures drop below the safety threshold without requiring a manual service call for a simple reset. This HVAC replacement part is built with a compact footprint, making it the go-to limit switch with capillary for tight cabinet installs where clearance is a factor. Its robust construction ensures long-term reliability in industrial machinery and conveyor heating applications, maintaining the narrow tolerances required for safety compliance and system longevity.

Key Benefits for Technicians
  • Fixed Thermal Cutout: Opens reliably at 240°F to prevent cabinet and component overheating.
  • Automatic Reset: De-escalates service calls by restoring the circuit once safe temperatures are reached.
  • Capillary Design: Equipped with a protective cap and sensing tube for precise monitoring of plenum air.
  • High Compatibility: Direct OEM fit for TPI and Markel 5100 series heaters up to 5 kW.
  • Compact Housing: Optimized for installation in confined industrial control boxes and HVAC cabinets.
Common Questions

Is the Markel 57640006 a manual or auto-reset type?
This is an automatic reset switch. It will open the circuit at 240°F and close it again automatically when the temperature falls back to the reset differential.

Can I use this for any furnace high-limit application?
While it is used across various industrial machinery, always verify the temperature rating and mounting style. This unit is rated for 240°F and is a standard replacement for specific Markel/TPI heater models like the F1F5103N.

What causes this limit switch to trip frequently?
Repeated trips are usually caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed return vents. If the switch trips, prioritize checking the system's static pressure and air movement.

This item is not eligible for free shipping.

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.

Product Information

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Description

When you are troubleshooting a unit that is short-cycling or throwing a thermal trip code, you need a high-temperature safety that reacts with precision. The Markel 57640006 Limit Control is a professional-grade L240F auto reset limit switch designed specifically for demanding industrial heating and commercial HVAC maintenance. This bimetal disc thermostat features a 240-degree Fahrenheit fixed setting, serving as a critical protection device against heat exchanger overheating in electric heaters and 5100 series forced-air systems. The integrated capillary sensing tube and capillary cap ensure rapid detection of localized temperature spikes, pulling the circuit before components sustain damage.

For contractors, the auto-reset functionality of the Markel 57640006 is a significant advantage, allowing the equipment to restore operation once temperatures drop below the safety threshold without requiring a manual service call for a simple reset. This HVAC replacement part is built with a compact footprint, making it the go-to limit switch with capillary for tight cabinet installs where clearance is a factor. Its robust construction ensures long-term reliability in industrial machinery and conveyor heating applications, maintaining the narrow tolerances required for safety compliance and system longevity.

Key Benefits for Technicians
  • Fixed Thermal Cutout: Opens reliably at 240°F to prevent cabinet and component overheating.
  • Automatic Reset: De-escalates service calls by restoring the circuit once safe temperatures are reached.
  • Capillary Design: Equipped with a protective cap and sensing tube for precise monitoring of plenum air.
  • High Compatibility: Direct OEM fit for TPI and Markel 5100 series heaters up to 5 kW.
  • Compact Housing: Optimized for installation in confined industrial control boxes and HVAC cabinets.
Common Questions

Is the Markel 57640006 a manual or auto-reset type?
This is an automatic reset switch. It will open the circuit at 240°F and close it again automatically when the temperature falls back to the reset differential.

Can I use this for any furnace high-limit application?
While it is used across various industrial machinery, always verify the temperature rating and mounting style. This unit is rated for 240°F and is a standard replacement for specific Markel/TPI heater models like the F1F5103N.

What causes this limit switch to trip frequently?
Repeated trips are usually caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed return vents. If the switch trips, prioritize checking the system's static pressure and air movement.

This item is not eligible for free shipping.

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.

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