Seco-Larm SD-997A-GBQ Electric Deadbolt – Fail-Secure

Electric Deadbolt for Metal and Wood Doors

The SECO-LARM SD-997A-GBQ is a fail-secure electric deadbolt designed for secure access control in offices, commercial buildings, and metal door frames. It locks automatically when power is lost, providing dependable protection and includes a key-operated manual override for emergencies. Built with a stainless-steel bolt and magnetic door sensor, it ensures consistent, positive locking in both horizontal and vertical installations.

Key Features

• Operates on 12 or 24 VDC
• Fail-secure design (remains locked during power loss)
• Stainless steel 5/8" diameter bolt with 5/8" throw
• Magnetic sensor ensures full bolt engagement before locking
• Adjustable door lock delay timer (0, 3, 5, or 9 seconds)
• Manual key cylinder for mechanical lock/unlock override
• Multi-directional mounting for versatile installation
• Overcurrent protection and multiple automatic relock attempts
• Ideal for hollow metal doors, wood doors, and office applications

Technical Specifications

• Voltage: 12/24 VDC dual voltage
• Current Draw: 330mA standby, 880mA active at 12VDC; 205mA standby, 470mA active at 24VDC
• Status Sensor: SPDT (NO/NC/COM), rated 250mA at 12VDC
• Lock Delay Timer: Adjustable to 0, 3, 5, or 9 seconds
• Bolt Material: Stainless steel
• Operating Temperature: 32°F to 194°F (0°C to 90°C)
• Operating Humidity: 0–85% non-condensing
• Lock Dimensions: 7-7/8" × 1-1/4" × 1-9/16" (200 × 31.8 × 40.5 mm)
• Strike Plate Dimensions: 3-9/16" × 1" × 1/8" (90 × 25.7 × 3 mm)
• Weight: 2 lb 5 oz (1 kg)

Conclusion

The SECO-LARM SD-997A-GBQ electric deadbolt provides high-strength locking and flexible control options in a compact design. With its fail-secure function, key override, and adjustable lock timing, it offers reliable security for interior or perimeter doors in commercial and industrial settings.