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Sensor Type
Contact Closure
Low Voltage
Water & Irrigation Type
Sprinkler Control
Contact Closure / Relay
Contact Closure Input / Output
Door Strike Control
# of Relays
6 Relays
Ease of Installation
Intermediate (Installs < 60 minutes)
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Control High Current Draw Devices with These Six Relays
ELK 912B-6 SPDT Heavy-Duty Relay Board 6-Piece Set
ELK 912B-6 SPDT Heavy-Duty Relay Board 6-Piece Set
ELK 912B-6 SPDT Heavy-Duty Relay Board 6-Piece Set
Item# 7278S
Price: $47.07
Free shipping on orders over $175 - See Details


  • Output contacts 7A @ 30VDC 10A @125VAC
  • Input trigger 12 or 24VDC
  • Cross head terminals
  • Form "C" dry contacts
  • Low current draw

Essential Info

This general purpose, heavy-duty compact relay features SPDT Form "C" heavy duty dry contacts, low current draw and positive or negative activation. Control high current draw devices such as door strikes, sprinkler valves, electric dampers, motors, and more from your home automation controller or any other device producing a low voltage output signal. The trigger voltage is selectable, either 12 or 24 volts DC. The input and output terminals are heavy-duty screws. This is a six-piece set.

Also available as a single heavy-duty relay, a single light-duty relay, and a 12-pack of light-duty relays.

Note: Units are on a Pre-Scored/Break-Off PCB.


What's Included

  • SPDT Relay Board 6-Piece Set 912B-6
  • Instructions

  • Specifications

    Manufacturer Product No.ELK-912B-6
    Operating Voltage12 or 24VDC
    Current Draw35mA, relay on
    Relay ContactsForm C, 7A @ 30VDC, 10A @ 125VAC
    Minimum Pull-In Voltage9VDC on 12v setting
    19VDC on 24v setting
    DimensionsSingle Relay: 2" x 1.5" (51 x 38mm)
    Six Relays: 4.5" x 3" (102 x 114mm)
    Mfgr WarrantyLifetime, limited

    Important notes:
    Defective exchanges for identical item within Manufacturer’s warranty period.
    Manufacturer contact information: ELK Products Inc, Tel: (800) 797-9355


    9 Ratings
    5 star: 89%  (8)
    4 star: 11%  (1)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (9 customer ratings)
    Share your thoughts with other customers
    STEVEN -- bel air, MD   4/3/2012
    Relay Board works well as described, not controlling anything requiring the heavy duty contacts but rather needed the concentration of relays in a small space.
    CHRIS -- wellsboro, PA   10/2/2009
    Could use a couple more mounting holes, but other than that, perfect.
    MURAD AHMED -- springfield gardens, NY   2/18/2009
    These are great relay board, just what i was looking for.
    MICHAEL -- spotsylvania, VA   4/25/2008
    Good quality, good documentation, cheap price, fast delivery - what could you ask for. You guys are great!
    MATTHEW -- shohola, PA   3/29/2007
    Good product. worked well with my application! Will do business again I am sure!
    SHANNON -- fort ashby, WV   3/29/2007
    GREAT product. Perfect.
    OTMAR -- fort lauderdale, FL   6/7/2006
    Great item
    ANTHONY -- vancouver, WA   2/25/2005
    Met my expectations. Product is high quality and was properly packaged for shipping.
    STEVEN -- highland, CA   12/16/2004
    Great value. Saved us a lot of money.

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