Nordyne 626341R Limit Switch

The Nordyne 626341R Limit Switch is a critical safety component engineered for precise thermal regulation in HVAC systems, specifically within Intertherm, Miller, and Nordyne gas furnace units. This OEM replacement part is a L155-40F limit switch, designed to automatically break the electrical circuit when internal plenum temperatures reach 155?F. This auto-reset limit switch ensures system integrity by preventing overheating, and effectively closes the circuit once the temperature drops back to 115?F. As a veteran-grade furnace high limit switch, it replaces legacy part numbers 626341, 6263410, and 624722. Its automatic reset functionality eliminates the need for manual intervention after a standard thermal trip, maintaining consistent HVAC equipment performance. For contractors servicing mobile home or residential units, this 115V T-O-D 60T11 style control provides the exact factory specifications required for a seamless drop-in fit and reliable thermal protection in high-demand environments.

• Direct OEM Compatibility: Verified fit for Intertherm, Miller, and Nordyne MGH and M1G gas furnaces.
• Precise Thermal Calibration: Reliable 155?F open and 115?F close setpoints for accurate furnace temperature control.
• System Safety: Functions as a primary rollout limit switch or high-limit safety to prevent heat exchanger damage.
• Durability: Built to withstand the rapid thermal cycling typical of high-efficiency HVAC heating cycles.

• Is this switch a manual or automatic reset? This is an auto-reset limit switch, meaning it will reset itself once the furnace temperature cools back down to its 115?F closing threshold.
• Does this replace part number 626341? Yes, the 626341R is the current manufacturer-specified replacement for part numbers 626341 and 6263410.
• What causes this limit switch to trip? Frequent tripping is often caused by restricted airflow, such as a dirty air filter, blocked return air, or an oversized blower motor setting.

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.