Trade Professional? Apply to become a TradeMaster!
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.
Read more
Specs
Application:
Zoning
Zones:
1
Width:
4-7/16"
Height:
6-1/4"
Amperage:
7.4
Power Method:
120V
Voltage:
120v
Hertz:
60
Depth (Inches):
3-1/2"
Ambient Conditions:
0-90% RH non-condensing
-20 F to +120 F
Switch Action:
Two SPST plus PowerPile® rated low voltage SPST relay
Relays:
Low Voltage SPST
Thermostat Compatibility:
Honeywell Electromechanical
Electronic 2-wire
Electronic 3-wire
Connection Type:
2-Wire
3-wire
×
Questions?
Speak with a real person who will go out of their way to help!
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET

1 Video

    17 Product Reviews

    Product Q&A

    Add-on Item

    This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

    Why don't we show the price of this item?

    We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

    To see the price, simply add the item to your cart or sign in.