Description
The Copeland Comfort Control 3L11-120 is a fixed-temperature bimetal disc limit switch designed for HVAC and mechanical control applications requiring reliable thermal protection or fan cycling control. This control operates within a fixed temperature range of 115 to 125°F with a 30°F differential and features an SPST switch that opens on temperature rise. Built with a 1/2" bimetal disc sensing element, it provides consistent thermal response and automatic reset functionality once temperatures drop below the reset threshold. Commonly used in air handling and heating systems, this control helps maintain safe operating conditions and equipment protection.
Key Features
- Copeland Comfort OEM temperature control switch
- Fixed operating range: 115–125°F
- 30°F differential temperature response
- SPST contact configuration, open on temperature rise
- Automatic reset after temperature drop
- 1/2" bimetal disc sensing element
- Replacement part number: 36T21-10846
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