DC 12V Mini Fail Safe Electric Bolt Lock | 5-Wire Solenoid
DC 12V Mini Fail Safe Electric Bolt Lock | 5-Wire Solenoid
DC 12V Mini Electric Bolt Lock – Fail Safe Solenoid Door Lock with 5-Wire Feedback
Upgrade your access control system with the B5L Mini DC 12V Electric Bolt Lock — a compact, energy-efficient, fail-safe solenoid deadbolt built from durable stainless steel. Designed for seamless integration with modern security systems, this drop bolt lock automatically secures or releases the door based on power state, making it ideal for offices, server rooms, apartment entryways, and commercial access points.
Key Features
- Fail-Safe Operation: Bolt retracts when power is applied, allowing safe egress during power outages — ideal for fire-rated doors and emergency exit compliance.
- Magnetic Induction Auto Deadbolt: Smart sensor detects door position and automatically engages the bolt for reliable, hands-free locking.
- 5-Wire Feedback System: Built-in feedback wires provide real-time lock status signals to your access control panel — know instantly whether the bolt is locked or unlocked.
- Energy-Saving Design: Low steady-state current draw of just 0.12A means minimal power consumption during normal operation.
- Stainless Steel Construction: Corrosion-resistant and built to last, suitable for both indoor and exterior door frame installations.
- Easy Installation: Mounts to external door frames with standard hardware — no complex wiring or special tools required.
- Compact Form Factor: Mini profile (Model: B5L Mini) fits tight spaces where traditional bolt locks won't.
Technical Specifications
| Model | B5L Mini Electric Bolt Lock |
| Voltage | DC 12V |
| Starting Current | 0.9A |
| Steady Current | 0.12A |
| Material | Stainless Steel |
| Weight | 0.26 kg |
| Wire Configuration | 5-Wire with Feedback |
| Lock Type | Fail Safe (Normally Open) |
Ideal Applications
- Office and commercial building access control
- Apartment and residential entry doors
- Server rooms and secure storage areas
- Intercom and keypad-integrated security setups
- Fire-rated doors requiring fail-safe compliance
Made in Mainland China.
For guidance on access control and door hardware safety standards, refer to the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What does "fail safe" mean for this electric bolt lock?
A: A fail-safe electric bolt lock means the bolt retracts (unlocks) when power is removed or lost. This ensures doors can be opened freely during a power outage or emergency, making the B5L Mini compliant with many fire safety and emergency egress requirements.
Q: What is the purpose of the 5-wire feedback system on this solenoid door lock?
A: The 5-wire feedback configuration includes status signal wires that communicate the real-time lock position (locked or unlocked) back to your access control panel or alarm system. This allows for monitoring, logging, and alarm integration — a major advantage over basic 2-wire locks.
Q: Is this DC 12V electric bolt lock suitable for outdoor or exterior door installations?
A: Yes. The stainless steel body provides corrosion resistance, making it suitable for external door frame mounting. However, for fully exposed outdoor environments with direct rain exposure, additional weatherproofing of the wiring and connectors is recommended.
Q: How difficult is it to install the B5L Mini electric bolt lock?
A: Installation is straightforward. The lock mounts to an external door frame using standard hardware, and the 5-wire harness connects directly to a DC 12V access control power supply. No specialized tools are required, and most installations can be completed in under an hour.