DC 12V Electric Bolt Lock Fail Safe/Secure | Mortise Door Lock
DC 12V Electric Bolt Lock Fail Safe/Secure | Mortise Door Lock
DC 12V Electric Bolt Lock – Fail Safe & Fail Secure for Mortise Doors
Upgrade your access control system with the LUCKING DOOR DC12V Electric Bolt Lock (Model B3L) — a versatile, heavy-duty locking solution engineered for glass, wooden, metal, and security doors. With both Fail Safe (NC) and Fail Secure (NO) modes available, this lock gives you full control over how your door behaves during a power event. Easy to install, compact, and built from durable aluminum alloy, it's an ideal upgrade for homes, offices, and commercial access points.
Key Features
- Dual Mode Operation: Choose between Fail Safe (unlocks when power is cut) or Fail Secure (remains locked when power is cut) to suit your security requirements.
- 5-Wire Design with NC/NO Output: Provides flexible integration with access control panels, keypads, intercoms, and more.
- Feedback Signal: Built-in feedback signal lets your control system confirm the lock's actual state in real time.
- Adjustable Time Delay: Select from 0, 3, or 6-second delay settings for added convenience and customization.
- Low Working Current: Efficient design draws just 60mA during normal operation, reducing energy consumption.
- Wide Temperature Range: Operates reliably from -10°C to +55°C (-14°F to 131°F), suitable for both indoor and outdoor-adjacent applications.
- Aluminum Alloy Construction: Slim, sturdy body (120 × 18 × 23mm) designed to fit most standard mortise door cutouts with minimal modification.
- No External Interference: Engineered to resist signal interference, ensuring stable and consistent locking performance.
- Universal Compatibility: Fits glass, wooden, metal, and security doors — perfect for residential and commercial installations alike.
Technical Specifications
| Model | B3L |
| Working Voltage | DC 12V |
| Start Current | 1,200mA (1.2A) |
| Working Current | 60mA (steady state) |
| Lock Mode | Magnetic Induction |
| Secure Mode | NC / NO (Fail Safe / Fail Secure) |
| Wire Configuration | 5-Wire |
| Time Delay | 0 / 3 / 6 seconds (adjustable) |
| Dimensions | 120 × 18 × 23mm |
| Working Temperature | -10°C to +55°C |
| Material | Aluminum Alloy |
| High-Concern Chemicals | None |
| Country of Origin | Made in China (Mainland) |
What's in the Box?
- 1 × DC 12V Electric Bolt Lock (Model B3L)
- Mounting hardware included
Learn More About Access Control & Door Security
For guidance on home and building security best practices, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer safety resources related to home security products.
Frequently Asked Questions
Q: What is the difference between Fail Safe and Fail Secure mode on this electric bolt lock?
A: In Fail Safe (NC) mode, the lock automatically unlocks when power is cut — useful for emergency egress requirements. In Fail Secure (NO) mode, the lock stays locked even when power is lost, maintaining security during power outages. You can choose the mode that best suits your application.
Q: What types of doors is this DC 12V electric bolt lock compatible with?
A: This electric bolt lock is compatible with a wide range of door types, including glass, wooden, metal, and security doors. Its compact 120 × 18 × 23mm aluminum alloy body fits most standard mortise door cutouts.
Q: How does the 5-wire NC/NO output work with my access control system?
A: The 5-wire configuration provides both power connections and a feedback signal output. The NC/NO terminals allow direct integration with most access control panels, intercoms, exit buttons, and keypads — no special adapters required. The feedback signal confirms the real-time lock status to your controller.
Q: Can I adjust the time delay on this electric bolt lock?
A: Yes. The lock features a built-in adjustable time delay with three settings: 0 seconds (instant), 3 seconds, and 6 seconds. This allows you to customize door release timing to suit your specific access control setup.