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Door Lock & Access Control Type
Access System Components
Contact Closure / Relay
# of Relays
1 Relay
Control Method
Control Systems / Relay
12V DC
24V DC
Ease of Installation
Intermediate (Installs < 60 minutes)
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Heavy Duty Relay Module Works Great for General Purpose Switching of Devices or High Current Loads
ELK 912B Relay Module 12/24 Volt
ELK 912B Relay Module 12/24 Volt
ELK 912B Relay Module 12/24 Volt
Item# 1299
Price: $10.71
Free shipping on orders over $175 - See Details


  • High Quality Cross-head Terminals
  • 12 or 24 Vdc Selectable Operation
  • Low Current Draw
  • Voltage Input LED
  • Form "C" Dry Contacts
  • Great For General Purpose Switching
  • Small, Compact Size
  • Double Sided Foam Tape Provided For Mounting
  • Packaged in Reusable Poly Storage Box

Essential Info

The ELK-912B is a general purpose, heavy-duty compact relay featuring SPDT Form "C" heavy duty dry contacts, low current draw, voltage input LED, 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.

Also available as a single relay, a relay board, and a 6-pack of heavy-duty relays.



Operating Voltage: 12 or 24 Volts DC Nominal
Current Draw: 35mA, triggered (relay on)
Relay Contacts: Form "C" , 7A @ 30VDC, 10 A @ 125VAC
Min. Pull-in Voltage: 9VDC on 12V setting, 19VDC on 24V setting
Dimensions: 2" X 1.5 " (51mm X 38mm)
Important notes:
Defective exchanges for identical item within Manufacturer’s warranty period.
Manufacturer contact information: ELK Products Inc, Tel: (800) 797-9355


8 Ratings
5 star: 88%  (7)
4 star: 12%  (1)
3 star: 0%  (0)
2 star: 0%  (0)
1 star: 0%  (0)
Average Customer Rating
(8 customer ratings)
Share your thoughts with other customers
LOUIE -- colchester, CT   1/13/2012
Great little relay. I'm using it in conjunction with a waterbug WB-800 to detect wetness in my basement. If water is detected it will essentially signal another relay to cut power to my water pump. This was just what the system needed.
TIM -- seaside, CA   4/15/2011
Perfect for my app. Good price.
JOSEPH -- little rock, AR   8/7/2010
Excellent quality. Very convenient.

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