Electric Deadbolt – Fail-Secure

SECO-LARM Electric Deadbolts are designed for hollow metal door frames. They are not recommended for wooden door frames. However, the door can be wood or metal.

  • product_icon
  • product_icon
  • Adds concealed deadbolt security to most wood or hollow metal doors, with the convenience of electrical operation
  • Incorporates manual lock/unlock cylinder to operate the SD-997A-GBQ if power is lost (turn lock knob from inside protected premises and/or use key from outside protected premises)
  • Stainless steel bolt, 5/8” diameter, 5/8” throw
  • Fail-secure operation (locks if power is lost)
  • Magnetic switch senses door position for positive locking
  • Includes control wire which allows for releasing without cutting unit’s power
  • Attempts to relock multiple times if the door is not closed properly to prevent the solenoid from burning out. Once the door is closed properly it will automatically lock
  • Over-current protection 1.5A.
  • Door open/close monitor (NO/C/NC)
  • Adjustable door lock delay timer (0,3,5, or 9 seconds)
  • Use with an optional digital keypad for high security without a key. Easily connects to SECO-LARM Digital Keypads
  • Suitable for office-type applications
  • Shallow design for use with most metal door jambs
  • Multi-directional horizontal or vertical mounting
  • Powered by a solenoid
  • Stainless steel for strength and long life
  • Plug: Special conic cavity stainless steel (thickness 1.5mm~1.8mm)
*The SD-997A-GBQ is designed for hollow metal door frames. It is not recommended for wooden door frames. However, the door can be wood  or metal.
NOTE: SECO-LARM also provides an electric deadbolt for Fail Safe operations, the SD-997B-GBQ.
Operation Fail-secure
Current Draw- Standby [email protected] / [email protected]
Current Draw- Active [email protected] / [email protected]
Status Sensor SPDT, 250mA @ 12VDC (NO/NC/COM)
Operating Voltage 12/24 VDC
Adjustable Delay Timer 0, 3, 5, 9 seconds
Weight 2-lb 5-oz (1kg)

Product Information Sheet (PI)


Problem Possible Cause Solutions:
Deadbolt does not activate when the door closes. The sensor in the lock body is too far from the magnet in the strike plate. • Try adjusting the strike plate, lock body position, or shims.
Deadbolt activates when the door is closed, but does not lock the door Deadbolt may not be properly going into the deadbolt hole in the door. • Make sure the deadbolt is going into the hole and not hitting the strike plate. If not, you must reposition the strike plate.
• If the deadbolt is going into the hole, it may be hitting the bottom of the hole (if it is in a wooden door). In this case, drill a deeper hole
How to reset unit. • When testing, if necessary, reset the unit by grounding the orange wire momentarily.
For any other problems. • Replace the unit, and test again. A problem unit can also be substituted for a working unit in another door frame to see if it works there.

No upsell products found

Scroll to Top