Description
The Honeywell/Resideo R8845U1003 is a versatile switching relay equipped with an internal 24 VAC transformer. It’s designed to bridge the gap between line‑voltage and low‑voltage controls, making it ideal for hydronic heating systems. Whether you’re controlling pumps, circulators, zone valves, or combining older/mixed wiring systems with modern thermostats, this relay delivers dependable switching with user‑friendly features.
Features:
- Two troubleshooting LED
- Push-to-test button
- Replaceable transformer fuse
- Low-voltage contact rating for Powerpile applications
- Long-life DC relay drive control technology
- Relay for use with external 24 Vac or 24 Vdc supply, with line-voltage control, or with internal 24 V transformer supply
- One model replaces many competitor models
- One model may replace many Honeywell models:R182A,B,C,J; R482A,B,C,J; R845; R882A,B,C,J and RA832
- Includes integral transformer, enclosure
- Approvals of Canadian Underwriters Laboratories and Underwriters Laboratories Inc.
