Description
The Copeland 3L11-110 is a precision temperature control limit switch engineered for reliable overheat protection in HVAC and refrigeration equipment. Featuring a rugged 1/2″ bimetal disc design, this limit switch delivers consistent, repeatable performance in demanding commercial and industrial applications.
Key Features
- Fixed temperature setpoint range: 105°F to 115°F
- Differential temperature: 30°F
- Switch action: SPST (Single-Pole, Single-Throw), Open on Rise
- Auto reset operation — automatically resets once temperature drops below the differential threshold
- 1/2″ bimetal disc construction for accurate and durable thermal response
- Cross-reference: 36T21-10845
How It Works
The bimetal disc responds to rising temperatures by opening the circuit at the fixed setpoint (105–115°F). Once the sensed temperature falls by the 30°F differential, the disc automatically resets and closes the circuit — providing hands-free, automatic protection without manual intervention.
Typical Applications
- Compressor and refrigeration unit overheat protection
- HVAC equipment limit control
- Commercial and light industrial temperature safety circuits
Specifications
- SKU: 3L11-110
- Brand: Copeland
- Fixed Temperature Range: 105°F to 115°F
- Differential Temperature: 30°F
- Switch Type: SPST
- Switch Action: Open on Rise
- Reset Type: Auto Reset
- Disc Size: 1/2″
- Disc Material: Bimetal
- Cross Reference: 36T21-10845
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