Description
The Honeywell RA89A1116 is a switching relay with an integrated transformer, engineered to deliver dependable zone control and switching functions in residential and light commercial HVAC systems. By combining the relay and transformer into a single compact unit, the RA89A1116 reduces installation time, minimizes wiring complexity, and saves valuable panel space.
Key Features
- Integrated transformer eliminates the need for a separate external transformer
- Designed for use in hydronic heating, zone control, and forced-air HVAC applications
- Compact, single-unit design simplifies installation and reduces component count
- Reliable switching action for consistent system performance
- Built to Honeywell’s exacting quality and durability standards
Application
The RA89A1116 is ideal for contractors and technicians looking to streamline zone control wiring in residential and light commercial settings. The built-in transformer provides the low-voltage power supply needed to operate the relay, making it a self-contained solution for a wide range of HVAC switching applications.
Why Choose the Honeywell RA89A1116?
- All-in-one relay and transformer combination reduces parts and labor
- Trusted Honeywell engineering for long-term reliability
- Suitable for a variety of HVAC zone control configurations
- Easy to install with standard HVAC wiring practices







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