Low-Profile Electric Door Strike with Horizontal Adjustment

The SECO-LARM SD-996C-NUHQ Low-Profile Door Strike with Horizontal Adjustment can be used with virtually any cylindrical-locking system and can be configured for use in wood or metal frames. Included are two different ANSI-sized faceplates to match the door frame type. The strike is easily field-configurable for fail-safe or fail-secure applications. For indoor use only.

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  • Field selectable for fail-safe or fail-secure
  • 12/24 VAC/VDC Operating voltage
  • Static strength – 1,500-lb (6,673N)
  • Dynamic strength – 70ft-lb (98J)
  • Includes wiring harness and connectors for either 12VAC/VDC or 24VAC/VDC
  • Trim plate included
  • Mounting tabs included for mounting to hollow aluminum door
  • Includes 2 faceplates for nearly any type of frame:
    • Metal door frames – SD-996SS-11Q
    • Wood door frames – SD-996SS-31Q
  • Reversible non-handed design fits either right-hand or left-hand doors
  • Low profile: Strike is only 1″ (26mm) deep for use with aluminum frames
  • Optional lip-extension brackets available:
    • SD-995C-LE25 1″ Lip Extension
    • SD-995C-LE50 2″ Lip Extension
Operating voltage 12/24 VAC/VDC*
Current draw 12VDC, 12VAC,  24VDC, 24VAC*
Latch throw 9/16″ (15mm), 1/2″ (12mm) strike depth + 1/8″ (3mm) door gap
Static strength 1,500-lb (6,673N)
Dynamic strength 70ft-lb (95J)
Endurance 1,000,000 cycles (factory tested)
Operating humidity 0~85%, Non-condensing
Operating temperature 32°~120° F (0°~49° C)
Dimensions 3-3/8″x1-3/4″x1″ (86x45x26 mm)
Weight 11.2-oz (318g)

*DC power must be used for any continuous duty application and can also be used for intermittent duty. AC power is suitable only for intermittent duty (maximum of 2 minutes on and 30 seconds off).

Product Information Sheet (PI)




  1. Check that the door latch is operating properly, and replace if necessary.
  2. The position of the electric strike may need to be adjusted by moving it or adding washers or shims.
  1. Unmount the strike and check that the two wires are connected properly.
  2. Ensure the wires are connected to a 12 or 24VDC source.
  3. Use a multimeter to test that the strike is receiving the proper voltage and amperage. If it is not, it may be necessary to use heavier gauge wires, or increase the output of the power supply.
  4. Make sure the activation device (keypad or push-button switch) is working properly.

Use DC power supply instead of AC power

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