Description
Lennox 10M76 Auto-Reset Limit Switch Overview
The Lennox 10M76 is an automatic-reset high-limit switch engineered to protect furnaces and heating equipment from dangerous overtemperature conditions. Designed as a direct OEM replacement for compatible Lennox systems, this limit switch provides reliable, repeatable thermal protection to keep your equipment running safely and efficiently.
How It Works
The 10M76 monitors supply-air or heat exchanger temperatures continuously. When temperatures reach the upper limit setpoint of 170°F, the switch opens the circuit — shutting down the burner or heat source to prevent damage. Once temperatures fall back to the reset point of 130°F, the switch automatically resets and restores normal operation, minimizing downtime without requiring manual intervention.
Key Specifications
- Brand: Lennox
- Part Number / SKU: 10M76
- Switch Type: Automatic (AUTO) Reset
- Trip Temperature: 170°F
- Reset Temperature: 130°F
- Application: Furnace high-limit overheat protection
Features & Benefits
- Automatic reset eliminates the need for manual intervention after a limit trip
- OEM-quality construction ensures proper fit and reliable performance in compatible Lennox equipment
- Protects heat exchangers, burners, and system components from thermal damage
- Helps maintain safe operating conditions and extend equipment service life
- Direct replacement part for simplified installation
Application
The Lennox 10M76 limit switch is intended for use in Lennox furnaces and heating systems requiring a 130–170°F automatic-reset high-limit control. Always verify compatibility with your specific equipment model before installation. Consult the equipment service manual for proper mounting location, wiring, and torque specifications.
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