The Lennox 25U19 (OEM Part #100847-16) Limit Control is a high-temperature safety device designed to protect HVAC systems from overheating. This single-pole, single-throw (SPST) switch automatically opens the electrical circuit when the set temperature threshold is exceeded, helping to prevent damage to furnaces, air handlers, or other heating components.Engineered for reliable performance in demanding environments, this limit control ensures safe operation by monitoring and managing internal temperatures. It features durable construction and is factory-calibrated to meet strict Lennox specifications, ensuring compatibility and precision within Lennox heating systems.Key Features:
- Genuine Lennox OEM replacement part
- Part Number: 25U19 / 100847-16
- SPST (Single Pole, Single Throw) design
- Automatically opens on temperature rise
- Ensures system safety by preventing overheating
- Commonly used in Lennox gas furnaces and air handlers