The Honeywell RT850 is a 120V TRIAC Solid State Relay engineered for dependable, low-maintenance switching in HVAC and building control applications. Unlike electromechanical relays, solid state technology eliminates moving parts, reducing wear and virtually eliminating contact arcing — resulting in quieter operation and an extended service life.
Key Features
- 120V AC TRIAC solid state switching technology
- No mechanical contacts — silent, arc-free operation
- Designed for HVAC control panel and building automation integration
- Compact form factor for easy panel mounting
- Reliable performance in demanding heating, cooling, and ventilation control circuits
- Reduces maintenance requirements compared to traditional electromechanical relays
Application
The RT850 is ideal for use in HVAC control systems where reliable, long-lasting load switching is required. It is well-suited for integration into zone control panels, fan and blower circuits, and other 120V switching applications found in residential and light commercial HVAC installations.
Product Details
- Brand: Honeywell
- Model: RT850
- Voltage: 120V AC
- Switch Type: TRIAC Solid State








