Armstrong 26H78 Furnace Limit Switch

The Armstrong 26H78 Furnace Limit Switch is a dependable furnace safety device that helps protect your heating system by monitoring temperature and automatically opening the circuit when preset limits are reached. This furnace limit switch delivers reliable shutoff to prevent overheating and damage to your furnace.

Featuring a Type Switch design with Manual Reset, this HVAC safety component is built for durability in demanding environments. Used on furnaces, the Armstrong limit switch is a critical control for safe operation and a controlled restart after an overheat condition.

• Purpose: Provides automatic shutdown when temperature exceeds safe levels to protect the furnace and home.
• Reset: Manual Reset option ensures intentional restart after an overheat event.
• Compatibility: Designed for Armstrong furnaces and compatible control circuits.
• Durability: Rugged construction built to withstand typical HVAC conditions.
• Installation: Easy replacement in standard furnace wiring harnesses for quick service.