Honeywell RC845 Aube RC845 Relay
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Honeywell RC845 Aube RC845 Relay

Controls a Gas, Oil, or Electric Furnace and Fan, when adding a Heat Pump to your Heating System
  • Compatible with most heat pump thermostats
  • Compact size permits installation on or inside an electrical box
  • Integrated design eliminates need for two-relay setup
  • Clearly labeled wires and connections enable simple installation and servicing
  • Low voltage dry contact output activates auxiliary heating system
  • Line voltage contact output controls fan
  • Terminal board connection enables easy installation

Item #: 300618

Expected in stock 11-02-2014

Special Price: $39.21

List Price: $65.18

Your Savings: $25.97

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Honeywell RC845 Aube RC845 Relay

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  • Details
  • Specs
  • Reviews
  • Manuals
  • The RC845 is designed to control either a gas, oil furnace burner or an electric furnace as well as the fan when adding a heat pump on an existing heating system. The RC845 includes a low voltage dry contact output to activate the auxiliary heating system, and a line voltage contact output to control the fan operation. When installed with an Aube heat pump thermostat (TH144HP), the installer can configure the auxiliary heat sequence to turn OFF the compressor (Y) on a call for auxiliary heat. The RC845 combined with the TH144HP thermostat offers a complete integrated solution that simplifies installation and provides proper equipment operation.


  • Voltage Fan Contacts: 120 Vac/240 Vac
    Electrical Ratings, Inductive Load: 1.0 HP @ 208 Vac (Fan Output)
    Electrical Ratings, Inductive Load: 0.8 HP @ 120 Vac
    Electrical Ratings (Full Load): 16 A @120 Vac
    Electrical Ratings (Full Load): 12 A @ 240 Vac
    Electrical Ratings (Locked Rotor): 42 A @ 120/240 Vac
    Electrical Ratings, Resistive Load: Fan Contacts: 22 A @ 120/240 Vac
    Electrical Ratings, Resistive Load: Aux. Heat Contacts: 5 A @ 30 V
    Terminal Wire size: 12 AWG
    Operating Humidity Range (% RH): 0 to 95% RH, non-condensing
    Frequency: 60 Hz
    Dimensions (in.): (3-7/32 in wide x 2-7/32 in. high x 1-13/32 in. deep)
    Dimensions (mm): (82 mm wide x 56 mm high x 36 mm deep)
    Weight (oz): (11.5 oz)
    Weight (g): (326 g)
    Operating Ambient Temperature Range (F): (-4 F to 140 F)
    Operating Ambient Temperature Range (C): (-20 C to 60 C)
    Storage Temperature (F): (-40 F to 175 F)
    Storage Temperature (C): (-40 C to 80 C)
    Approvals, Underwriters Laboratories Inc: Approved
    Approvals, Canadian Underwriters Laboratories Inc: Approved
    Includes: Lock-nut
    Used With: TH144 Series
    Used With: TH146 Series
  • 1 Review

    Review of 300618 Review by MERRITT B
    Review of 300618
    Rating

    Smarthome is helpful and gives very good service. Highly recommended

    Posted on 4/19/2013

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