Authorized Seco-Larm Reseller

Seco-Larm SD-997B-1SQ Mini Surface-Mount Electric Deadbolt – Fail-Safe

Seco-LarmSKU: SD-997B-1SQ

Sale price$77.96
Usually ships within 3-5 business days
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Call Us: 718-435-2800


The SD-997B-1SQ adds deadbolt security to cabinet doors or drawers with the convenience of electrical operation. Its miniature size and surface-mount design allows it to be added to almost any location. Fail-safe operation unlocks the unit when power is lost. Door status monitoring is also available to tie into a control system.

  • Fail-safe operation (unlocks if power is lost)
  • Surface-mount design for easy installation
  • Magnetic switch senses door position for positive locking
  • Aluminum alloy bolt, 15/32” (12.7mm) diameter, 9/16” (14mm) throw
  • Automatically relocks after 6 seconds if the lock was unlocked but the door was not opened
  • Door open/close monitor (NC/COM)
  • Lock delay timer adjustable between 0 and 3 seconds
  • Use with an optional digital keypad for high security without a key
  • Powered by a solenoid



Operation Fail Safe
Current Draw- Standby 237mA@12VDC max.
Current Draw- Active 650mA@12VDC max.
Status Sensor 250mA@30VDC (NC/COM)
Operating Voltage 12VDC
Adjustable Delay Timer 0/3 s (default)
Operating Temperature 32º~158º F (0º~70º C)
Weight 1-lb, 2.5-oz (450g)



Deadbolt does not activate when the door
• Make sure the sensor in the lock body is not too far from the magnet in the strike body
• Adjust the strike body or lock body positioning
• Use the included shims to bring the lock body and strike body closer together
Deadbolt activates when the door is closed, but does not lock the door •Make sure the deadbolt is going into the strike body properly
How to reset the unit • Ground the green wire momentarily

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