Description
The Copeland 3L11-150 is a manual reset limit switch designed for temperature safety control in HVAC and heating equipment. This open-on-rise switch interrupts the electrical circuit when temperatures reach approximately 150°F (range 145°F–155°F), helping prevent overheating and protecting system components. The manual reset feature requires technician intervention before restoring operation, making it suitable for safety-critical applications. Built with a reliable bimetal disc, the 3L11-150 ensures accurate temperature response and consistent performance in furnaces, unit heaters, and other heating systems.
Key Features
- Open-on-rise temperature rating: approximately 150°F (145°F–155°F range)
- Manual reset for safety-critical applications
- Bimetal disc for accurate and repeatable temperature response
- Prevents overheating in HVAC and heating equipment
- Requires manual reset after fault condition
- Suitable for furnaces, unit heaters, and heating systems
- OEM-grade construction from Emerson / White-Rodgers
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