Mini Electric Bolt Door Lock DC 12V Fail Safe / Fail Secure
Asia-Teco Mini Electric Bolt Door Lock – DC 12V Fail Safe / Fail Secure
Upgrade your access control setup with the Asia-Teco Mini Electric Bolt Door Lock. Compact yet robust, this DC 12V electric bolt lock delivers reliable, programmable security for glass, wooden, metal, and security doors. With selectable Fail Safe (NO) and Fail Secure (NC) operating modes, a built-in time delay controller, and a door contact feedback signal, this lock gives you complete control over your entry points — whether for homes, offices, server rooms, or cabinets.
Key Features
- Dual Security Modes: Choose between Fail Safe (NO) — unlocks when power is cut — or Fail Secure (NC) — remains locked when power is cut. Select the mode that best fits your safety requirements.
- Time Delay Function: Programmable time delay allows the door to remain unlocked for a set period before automatically re-locking, ideal for controlled access flows.
- Door Contact Feedback Signal: Integrated feedback signal output lets you monitor the real-time open/closed status of the door, enabling seamless integration with alarm systems, access controllers, and monitoring panels.
- Durable Aluminium Alloy Construction: Built from high-grade aluminium alloy for long-lasting, reliable performance in demanding environments.
- Magnetic Induction Lock Mechanism: Smooth, quiet, and dependable magnetic induction operation for continuous-duty use.
- Wide Door Compatibility: Especially suited for glass, wooden, metal, and security doors.
- Minimal External Interference: Designed to operate with high stability and reduced susceptibility to electrical interference for safer, more consistent performance.
- Compact Form Factor: Slim 120 × 18 × 23 mm profile fits easily into tight spaces without compromising security.
Technical Specifications
| Brand | Asia-Teco |
| Model | B3L-NO / B3L-NC |
| Working Voltage | DC 12V |
| Working Current | Start State: 1.1A | Working State: 0.14A |
| Lock Mode | Magnetic Induction |
| Wiring Type | Continuous Work Type |
| Secure Mode | NC / NO — Optional |
| Feedback Signal | Yes |
| Material | Aluminium Alloy |
| Dimensions | 120 × 18 × 23 mm |
| Country of Origin | Made in China |
What's in the Box
- 1 × Mini Electric Bolt Door Lock (DC 12V)
- Mounting hardware included
Ideal Applications
- Office and commercial door access control
- Home security systems and smart home integrations
- Server rooms, cabinets, and lockers
- Glass door entryways and sliding panel doors
- Integration with keypads, card readers, and intercoms
For more information on electronic access control standards and electrical safety, visit the U.S. Consumer Product Safety Commission (CPSC) and OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What is the difference between Fail Safe (NO) and Fail Secure (NC) modes on this electric bolt lock?
A: In Fail Safe (NO) mode, the lock unlocks automatically when power is cut — ideal for fire safety scenarios where doors must open during emergencies. In Fail Secure (NC) mode, the lock remains locked even when power is removed — best for securing high-value areas where the door must stay shut during a power outage. You can select the mode that suits your specific security needs at time of installation.
Q: What types of doors is this mini electric bolt lock compatible with?
A: The Asia-Teco Mini Electric Bolt Lock (B3L-NO/B3L-NC) is designed for use on glass, wooden, metal, and standard security doors. Its compact 120 × 18 × 23 mm aluminium alloy body makes it easy to mount on most door frames without major modifications.
Q: Can this DC 12V door lock be integrated with an existing access control system?
A: Yes. This lock features a door contact feedback signal output, allowing it to communicate door open/closed status to access controllers, alarm panels, intercoms, or smart home hubs. It is compatible with standard DC 12V access control systems, including keypad, RFID card reader, and intercom-based setups.
Q: What is the time delay feature and how does it work?
A: The built-in time delay function keeps the lock in an unlocked state for a programmable duration after it receives an unlock signal. Once the set time elapses, the lock automatically re-engages. This is particularly useful for controlled entry points where you want the door to close and lock on its own without manual intervention.