Description
The Copeland 3L01-180 is a snap disc fan and limit switch designed for temperature-based control in HVAC and heating systems. This dual-function control closes on temperature rise at approximately 140°F to activate the blower fan and opens at 180°F to provide high-limit protection by interrupting the circuit. The automatic reset feature allows the switch to cycle based on temperature changes without manual intervention. Built with a durable bimetal disc, the 3L01-180 delivers consistent performance and is commonly used in furnaces, air handlers, and unit heaters requiring both fan control and overheat protection in a single device.
Key Features
- Dual-function fan and limit control
- Closes on rise at 140°F (fan activation)
- Opens on rise at 180°F (high-limit protection)
- Automatic reset for continuous operation
- Bimetal snap disc for reliable temperature response
- Suitable for furnaces, air handlers, and unit heaters
- OEM-grade construction from Emerson / White-Rodgers
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