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Honeywell R8845U1003 Universal Switching Relay w/ Internal Transformer
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Item Number: R8845U1003
Manufacturer Name: Honeywell
Manufacturer Part No: R8845U1003
* Whole number only
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 Honeywell R8845U1003 Universal Switching Relay with Internal Transformer Honeywell R8845U1003 Universal Switching Relay with Internal Transformer |
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Overview
The R8845U Universal Switching Relay with 24 V transformer provides 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.
Product Specifications
- Application: Enclosed Universal switching relay with internal transformer for 24 volt 2 or 3 wire thermostat control of line voltage devices. Two line voltage SPST relays and one low voltage SPST relay with PowerPile® rating.
- Dimensions (in.): 6 1/4 in. high x 4 7/16 in. wide x 3 1/2 in. deep
- Dimensions (mm): 159 mm high x 118 mm wide x 89 mm deep
- Includes: Integral transformer, enclosure
- Comments: Thermostat Compatibility-- Honeywell electromechanical and electronic 2- or 3-wire; Thermostat Heat Anticipator Setting-- 0.12A
- Frequency: 60 Hz
- Approvals, Underwriters Laboratories Inc.: Listed: File No. E4436, Guide No. XAPX
- Electrical Connections: Control Circuit- 2 or 3-wire
- Operating Humidity Range (% RH): 0 to 90% RH, non-condensing
- Temperature Ratings (C): Ambient: -29 C to +49 C
- Temperature Ratings (F): Ambient: -20 F to +120 F
- Approvals, Canadian Underwriters Laboratories Inc.: Listed: Guide No. XAPX7.
- Switching: Two SPST, plus PowerPile® rated low voltage SPST relay. (If normally closed contacts are needed, use RA889A).
- Contact Ratings (AFL): 7.4A AFL, 44.4A @ 120 Vac on each set of line-voltage contacts
- Input Voltage: 120V
- Coil Ratings Voltage: 24 Vac
- Coil Ratings Current: 0.4A
- Electrical Ratings, Contacts: Maximum connected load is 2000 VA
- Transformer: Secondary Rating-24 Vac, 12 VA max., 9 VA available for external load. Secondary protected by replaceable 1A automotive fuse.
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