Electric Bolt Mortise Door Lock DC 12V Fail Safe Secure NC/NO

Asia-Teco Electric Drop Bolt Mortise Door Lock — Fail Safe & Fail Secure (NC/NO)

Take full control of your access control system with the Asia-Teco Electric Drop Bolt Mortise Door Lock. Engineered for residential, commercial, and office environments, this versatile electronic lock supports both Normally Closed (NC) and Normally Open (NO) configurations, giving you the flexibility to choose whether the door locks or unlocks upon power loss. Built from durable aluminium alloy, it integrates seamlessly into glass, wooden, metal, and security door systems.

Key Features

• Dual Secure Modes: Choose Fail Safe (unlocks when power is cut) or Fail Secure (remains locked when power is cut) — NC/NO selectable to match your security requirements.
• Magnetic Induction Locking: Smooth, silent magnetic output operation with a continuous-work winding type for reliable, long-term use.
• Adjustable Time Delay: 0, 3, or 6-second time delay settings allow customized entry/exit timing for controlled access scenarios.
• Feedback Signal: Built-in feedback signal output confirms lock status, enabling integration with monitoring panels and access control systems.
• Aluminium Alloy Construction: Robust, lightweight housing resists wear and corrosion for lasting performance.
• Wide Door Compatibility: Suitable for wooden, glass, metal, and security doors — ideal for offices, server rooms, warehouses, and homes.
• Stable & Interference-Free: Shielded design minimizes external electromagnetic interference for consistent, dependable operation.

Technical Specifications

Note: If you require a 9-wire lock, please search our store for the B8L model.

Who Is This Lock For?

This electronic mortise bolt lock is perfect for building managers, security integrators, IT server room administrators, small business owners, and homeowners who want a hardwired, programmable locking solution. Its compact mortise form factor fits neatly into standard door frames without bulky surface-mount hardware.

Installation & Compatibility

Designed for drilling installation, the lock requires a standard DC 12V power supply (sold separately). It integrates with common access control panels, keypad controllers, RFID readers, and exit buttons. The NC/NO configuration switch allows on-site customization to meet fire-safety egress requirements or high-security lockdown protocols.

For guidance on best practices in access control and electronic security systems, refer to the U.S. Consumer Product Safety Commission (CPSC) for safety standards relevant to electronic hardware installations.

Frequently Asked Questions

Q: What is the difference between Fail Safe (NO) and Fail Secure (NC) on this electric bolt lock?

A: In Fail Safe (NO — Normally Open) mode, the lock releases (unlocks) when power is cut, which is ideal for fire-exit compliance where doors must open freely in an emergency. In Fail Secure (NC — Normally Closed) mode, the bolt remains engaged (locked) when power is removed, providing higher security in restricted-access areas like server rooms or offices. You can select the mode that best suits your installation requirements.

Q: What DC voltage does this electric mortise bolt lock require?

A: This lock operates on DC 12V. The start-up current draw is 1.1A, and the steady working current is 0.14A. Ensure your access control power supply or transformer can deliver at least 1.5A at 12V DC for reliable, stable operation.

Q: Can this lock be integrated with an access control system or RFID reader?

A: Yes. The Asia-Teco electric bolt mortise lock includes a feedback signal output, making it compatible with most access control panels, RFID card readers, keypad controllers, and exit-button systems. The adjustable 0/3/6-second time delay also allows you to fine-tune how long the lock stays open after an access event, which is useful in high-traffic entry points.

Q: What door types is this electronic lock compatible with?

A: The lock is designed to work with a wide range of door materials and styles, including wooden doors, glass doors, metal doors, and security/reinforced doors. Its slim 200 × 28 × 38 mm aluminium alloy body fits most standard mortise channels, making it a versatile choice for both new installations and retrofits.