Description
The Copeland 3L11-180 is a manual reset limit switch designed to provide high-temperature safety protection in HVAC and heating equipment. This open-on-rise switch interrupts the electrical circuit when temperatures reach 180°F, helping prevent overheating and protecting critical system components. The manual reset feature ensures the system remains shut down until the condition is inspected and reset by a technician, making it ideal for safety-critical applications. Built with a dependable bimetal disc, the 3L11-180 delivers accurate temperature response and reliable operation in furnaces, unit heaters, and other heating systems.
Key Features
- Open-on-rise temperature rating: 180°F cut-out
- Manual reset for safety-critical protection
- Bimetal disc for accurate and repeatable performance
- 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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