Lennox 10M74 - Insertion Limit Switch (155°F Cut-Out, 125°F Reset)
The Lennox 10M74 Insertion Limit Switch is an OEM safety component designed to prevent HVAC system overheating. This automatic-reset switch interrupts the electrical circuit when temperatures exceed 155°F and resets once temperatures drop back to 125°F, ensuring reliable protection and operation.
Key Specifications:
- Part Number: 10M74 (also known as 10M7401)
- Open (Cut-Out) Temperature: 155°F
- Close (Reset) Temperature: 125°F
- Circuit Type: Normally Closed
- Reset Type: Automatic
- Insert Length: 3 inches
- Weight: Approx. 0.12 lbs (54.43 g)
Compatibility:
- Fits various Lennox furnace and air handler models, including:
- G40UH-60C-110
- G50UH-60C-110
- G60UH-36A-070
Replaces Part Numbers:
- L155-30F
- 44959
- A1330
Engineered to OEM standards, the 10M74 is ideal for both routine replacements and urgent repairs. Available now at Beenimax – your trusted source for genuine Lennox HVAC components.