The White-Rodgers 3L12-135 is a 1/2" SPST manual reset flame rollout limit switch designed for safety in gas-fired heating systems such as furnaces, unit heaters, and rooftop units. It features a 135°F cut-out temperature and opens on temperature rise to interrupt the circuit in the event of flame rollout, helping to protect the appliance from damage.Key Specifications:
- Cut-Out Temperature: 135°F
- Switch Type: SPST (Single Pole, Single Throw)
- Reset Type: Manual
- Operation: Opens on temperature rise
- Terminal Type: 1/4" Quick-Connect
- Mounting Size: 1/2"
- Design Style: TOD Style 36TX16, Type 611864

