Description
Honeywell R8845U1003 is a universal switching relay with internal transformer. This switching relay provides intermediate switching of line voltage and low voltage devices from a line voltage or low voltage controller. It is typically applied in Hydronic heating systems.
Honeywell Universal Switching Relays R8845U with 24 V transformer provide intermediate switching of line-and low-voltage devices from a line- or low-voltage controller and is typically applied in Hydronic heating systems.
Features:
- Replaceable socketed relays
- 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.
Technical Specifications:
- Switching Action: Two SPST, plus PowerPile® rated low voltage SPST relay. (If normally closed contacts are needed, use RA889A)
- Coil Ratings Current: 0.4A
- Coil Ratings Voltage: 24 Vac
- Thermostat Heat Anticipator Setting: 0.12A
- Transformer Primary Rating: 120V, 60 Hz
- Transformer Secondary Rating: 24V, 12 VA max., 9 VA available for external load. Secondary protected by replaceable 1A automotive fuse
- Temperature Range: (Ambient) -20 F to +120 F
- Thermostat Compatibility: Honeywell electromechanical and electronic 2- or 3-wire
- Dimensions: 6-1/4″ high x 4-7/16″ wide x 3-1/2″ deep
- Electrical Connections (Control Circuit): 2 or 3-wire
- Electrical Ratings (Primary Voltage): 120V, 60 Hz
- Contacts Electrical Ratings (120 Vac AFL): 7.4A AFL, 44.4A ALR on each set of line-voltage contacts. Maximum connected load is 2000 VA
- Replacement Parts: 32002190-001 Circulator Replacement Relay
- Operating Humidity Range (% RH): 0 to 90% RH, non-condensing
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