MARS 39026 Limit Switch
The MARS 39026 Limit Switch is a high-performance L220-4 HVAC temperature control designed for precise thermal management in furnace and air handling systems. As an Open on Rise limit switch, this component is engineered to automatically interrupt the circuit when the temperature reaches the 220°F (104°C) cut-out setpoint, ensuring system safety and preventing heat exchanger damage. Once the temperature drops to the 180°F cut-in threshold, the switch automatically resets to restore operation. Featuring an integral oval flange, the MARS 39026 offers universal mounting compatibility, making it a reliable choice for OEM limit switch replacement across multiple heating equipment brands. The compact 3/4-inch design is rated for 120/240 VAC applications, typically handling 5.8 to 10 amps. This furnace high limit switch is UL and CSA listed, providing technicians with a professional-grade HVAC replacement part that meets rigorous safety standards for residential and commercial heating repairs.
Key Benefits- Universal Compatibility: The integral oval flange matches standard mounting patterns for fast field installation.
- Reliable Thermal Protection: Fixed 220 degree open and 180 degree close parameters ensure consistent safety cycling.
- Industrial Build Quality: Features quick-connect terminals and a robust housing rated for high-temperature HVAC environments.
- Wide Application Range: Engineered to replace a variety of L220-4 limit controls in gas furnaces, electric heaters, and unit heaters.
What does 'Open on Rise' mean for the MARS 39026?
This refers to the safety logic where the electrical contacts break (open) as the sensed temperature increases to 220°F. This is a critical safety feature that prevents the furnace from overheating by killing power to the gas valve or heating elements.
Is the MARS 39026 a manual or automatic reset switch?
The MARS 39026 is an automatic reset limit switch. It will automatically close the circuit once the ambient temperature cools down to the 180°F reset point, allowing the system to resume normal operation without manual intervention.
Can this switch be used in 240V systems?
Yes, this switch is rated for dual voltage (120/240V) operation, making it suitable for both standard residential furnaces and commercial heating units requiring high-voltage HVAC limit controls.
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.
MARS 39026 Limit Switch
The MARS 39026 Limit Switch is a high-performance L220-4 HVAC temperature control designed for precise thermal management in furnace and air handling systems. As an Open on Rise limit switch, this component is engineered to automatically interrupt the circuit when the temperature reaches the 220°F (104°C) cut-out setpoint, ensuring system safety and preventing heat exchanger damage. Once the temperature drops to the 180°F cut-in threshold, the switch automatically resets to restore operation. Featuring an integral oval flange, the MARS 39026 offers universal mounting compatibility, making it a reliable choice for OEM limit switch replacement across multiple heating equipment brands. The compact 3/4-inch design is rated for 120/240 VAC applications, typically handling 5.8 to 10 amps. This furnace high limit switch is UL and CSA listed, providing technicians with a professional-grade HVAC replacement part that meets rigorous safety standards for residential and commercial heating repairs.
Key Benefits- Universal Compatibility: The integral oval flange matches standard mounting patterns for fast field installation.
- Reliable Thermal Protection: Fixed 220 degree open and 180 degree close parameters ensure consistent safety cycling.
- Industrial Build Quality: Features quick-connect terminals and a robust housing rated for high-temperature HVAC environments.
- Wide Application Range: Engineered to replace a variety of L220-4 limit controls in gas furnaces, electric heaters, and unit heaters.
What does 'Open on Rise' mean for the MARS 39026?
This refers to the safety logic where the electrical contacts break (open) as the sensed temperature increases to 220°F. This is a critical safety feature that prevents the furnace from overheating by killing power to the gas valve or heating elements.
Is the MARS 39026 a manual or automatic reset switch?
The MARS 39026 is an automatic reset limit switch. It will automatically close the circuit once the ambient temperature cools down to the 180°F reset point, allowing the system to resume normal operation without manual intervention.
Can this switch be used in 240V systems?
Yes, this switch is rated for dual voltage (120/240V) operation, making it suitable for both standard residential furnaces and commercial heating units requiring high-voltage HVAC limit controls.
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
Product Information
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Description
The MARS 39026 Limit Switch is a high-performance L220-4 HVAC temperature control designed for precise thermal management in furnace and air handling systems. As an Open on Rise limit switch, this component is engineered to automatically interrupt the circuit when the temperature reaches the 220°F (104°C) cut-out setpoint, ensuring system safety and preventing heat exchanger damage. Once the temperature drops to the 180°F cut-in threshold, the switch automatically resets to restore operation. Featuring an integral oval flange, the MARS 39026 offers universal mounting compatibility, making it a reliable choice for OEM limit switch replacement across multiple heating equipment brands. The compact 3/4-inch design is rated for 120/240 VAC applications, typically handling 5.8 to 10 amps. This furnace high limit switch is UL and CSA listed, providing technicians with a professional-grade HVAC replacement part that meets rigorous safety standards for residential and commercial heating repairs.
Key Benefits- Universal Compatibility: The integral oval flange matches standard mounting patterns for fast field installation.
- Reliable Thermal Protection: Fixed 220 degree open and 180 degree close parameters ensure consistent safety cycling.
- Industrial Build Quality: Features quick-connect terminals and a robust housing rated for high-temperature HVAC environments.
- Wide Application Range: Engineered to replace a variety of L220-4 limit controls in gas furnaces, electric heaters, and unit heaters.
What does 'Open on Rise' mean for the MARS 39026?
This refers to the safety logic where the electrical contacts break (open) as the sensed temperature increases to 220°F. This is a critical safety feature that prevents the furnace from overheating by killing power to the gas valve or heating elements.
Is the MARS 39026 a manual or automatic reset switch?
The MARS 39026 is an automatic reset limit switch. It will automatically close the circuit once the ambient temperature cools down to the 180°F reset point, allowing the system to resume normal operation without manual intervention.
Can this switch be used in 240V systems?
Yes, this switch is rated for dual voltage (120/240V) operation, making it suitable for both standard residential furnaces and commercial heating units requiring high-voltage HVAC limit controls.
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.
