Universal Switching Relay w/ Internal Transformer Zoom

Universal Switching Relay w/ Internal Transformer

SKU:R8845U1003

Brand: Honeywell

Honeywell
Qty Price
$47.25
/ each
$91.90 / box (2 units x $45.95)
In Stock! Ships in 24-48 Hours
(102 Available)
2

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

Description for Honeywell R8845U1003

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.

Universal Switching Relay w/ Internal Transformer

REVIEW SNAPSHOT®

by PowerReviews
HoneywellUniversal Switching Relay w/ Internal Transformer
 
4.7

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Primary use:
          • Personal (3)

        Reviewed by 3 customers

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        Displaying reviews 1-3

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        5.0

        Did what it is designed for

        By Rob.

        from New York, NY

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Universal Switching Relay w/ Internal Transformer:

              Once the correct part was found on site, purchasing and delivery was no problem. Less money,install easy when taking your time, problem with heat solved.

              • Primary use:
              • Personal
               
              5.0

              easy to install

              By jonny5

              from sharpsville pa.

              Verified Buyer

              Pros

                Cons

                  Best Uses

                    Comments about Universal Switching Relay w/ Internal Transformer:

                    now I have the third zone in my heating system running independent on the others

                    • Primary use:
                    • Personal
                     
                    4.0

                    This controller works as advertised

                    By Pete

                    from Harwood, MD

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about Universal Switching Relay w/ Internal Transformer:

                          I used this product to control an auxiliary external pump for hydronic heating. I used the 24v output control from an external source. The instructions are not geared toward this configuration but the online information specified it could be configured this way. If you can read an electrical diagram you can figure it out. The instructions include numerous examples of other configurations. I think an example of this type would have helpful. This is a versatile controller that is easy to set up.

                          • Primary use:
                          • Personal

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                          Q&A: Ask the Questions, share answers

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                          get answers from real customers and in-house experts with AnswerBox.

                          4 Questions | 4 Answers
                          Displaying questions 1-4
                          • Universal Switching Relay w/ Internal Transformer

                            Q:

                            I have 4 zone valves running off one circulator I was told I can run all of them with this relay box
                            Asked on 1/5/2012 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              We'd recommend a Taco ZVC404 or ZVC404-EXP (the -EXP version is "expandable" and can be combined with other -EXP controls).

                              Answered on 1/13/2012 by PexSupply Staff from NY
                          • Universal Switching Relay w/ Internal Transformer

                            Q:

                            I have 4 zones. Do I need 4 switching relays 0r will this control 4 zones?
                            Asked on 10/17/2011 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              This can only control one zone, so you would need 4 switching relays. Another option would be to use the Taco SR504 switching relay, which can accommodate four zones.

                              Answered on 10/18/2011 by PexSupply Staff from NY
                          • Universal Switching Relay w/ Internal Transformer

                            Q:

                            when I connect lines 1 and 2, and jump r-w on a switching relay (honeywell R8845U) should I get
                            24V on X1-X2, also 120v should come out to connect circulator pump?
                            Asked on 3/9/2011 by Fred

                            1 answer

                            • CUSTOMER CARE

                              A:

                              No, the X1 and X2 are dry, low-voltage rated contacts. A circulator may be wired to either COM and NO or to A and B, as both of these are line voltage rated contacts. They are also dry contacts.

                              Answered on 3/11/2011 by PexSupply Staff from NY
                          • Universal Switching Relay w/ Internal Transformer

                            Q:

                            can you control 2 heating zone valves and 1 circulator pump with this control ?
                            Asked on 11/4/2010 by hubby from new bedford , ma

                            1 answer

                            • CUSTOMER CARE

                              A:

                              No, you cannot. For that application, you need the Taco ZVC403-2.

                              Answered on 11/5/2010 by PexSupply Staff from NY
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