Fail Secure Drop Bolt Lock DC 12V/24V with Key Cylinder & Delay
Fail Secure Drop Bolt Lock DC 12V/24V with Key Cylinder & Delay
Asia-Teco DC 12V/24V Fail Secure Electronic Drop Bolt Lock
Upgrade your door access control system with the Asia-Teco B10L Electronic Drop Bolt Lock — a robust, fail-secure deadbolt solution built for commercial and residential entry points. Constructed from aluminum alloy and stainless steel, this lock delivers reliable, long-lasting performance with over 200,000 operation cycles tested. Made in Mainland China.
Why Choose This Drop Bolt Lock?
- Fail Secure (NO Type): The door remains locked when power is off — only unlocks when power is applied. Ideal for high-security environments where maintaining a locked state during power outages is critical.
- Mechanical Key Override: Includes a built-in key cylinder for manual unlocking, with a pick-proof lock core for added security.
- Selectable Time Delay: Choose from 0, 3, or 6-second delay settings to suit your access workflow.
- Visual Status Indicators: Green LED = unlocked; Red LED = locked — at-a-glance monitoring at all times.
- Door Status Signal Output: Integrated contact output allows integration with alarm systems or access control panels.
- Wide Voltage Compatibility: Operates on DC 12V or DC 24V for flexible installation in various access control setups.
- Durable Operating Range: Engineered to perform in temperatures from -10°C to +55°C (-14°F to 131°F).
Technical Specifications
| Brand | Asia-Teco |
| Model | B10L |
| Working Voltage | DC 12V / 24V |
| Working Current | Start: 1.2A | Holding: 0.2A |
| Lock Size | 210 × 26.5 × 37 mm |
| Inbuilt Size | 170 × 25 × 34 mm |
| Lock Tongue | Protrudes 14 mm, Dia. 12.5 mm |
| Time Delay | 0 / 3 / 6 seconds (selectable) |
| LED Indicators | Green (Unlocked) / Red (Locked) |
| Material | Aluminum Alloy & Stainless Steel |
| Operating Temperature | -10°C to +55°C |
| Life Test | 200,000 cycles |
| Country of Origin | Made in Mainland China |
Ideal Applications
This electronic drop bolt lock is well-suited for office buildings, server rooms, warehouses, retail stores, hotel corridors, and any door access control installation where fail-secure operation is required. Its compatibility with standard access control systems makes integration straightforward for security professionals and installers.
For general guidance on electronic security and access control best practices in buildings, refer to the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What does "fail secure" mean on this drop bolt lock?
A: Fail secure (also called "NO" or normally open type) means the lock bolt remains engaged and the door stays locked whenever electrical power is cut. Power must be actively supplied to retract the bolt and allow entry. This is ideal for secure areas where an unlocked door during a power outage would be a safety risk.
Q: Can this lock be opened manually without power?
A: Yes. The Asia-Teco B10L includes a built-in mechanical key cylinder, allowing authorized users to unlock the door manually at any time, independent of the power supply. The lock core features a pick-proof design for additional security.
Q: Is this lock compatible with both 12V and 24V access control systems?
A: Absolutely. This electronic drop bolt lock supports both DC 12V and DC 24V operating voltages, making it compatible with a wide range of access control panels and power supplies commonly used in commercial and residential installations.
Q: How do I select the time delay setting?
A: The B10L offers selectable time delay options of 0, 3, or 6 seconds. This is typically set via a dip switch or jumper on the lock body, allowing you to control how long the bolt remains retracted after an unlock signal before it re-engages.