12V Electric Mortise Drop Bolt Lock – Fail Secure + Key Cylinder
12V Electric Mortise Drop Bolt Lock – Fail Secure + Key Cylinder
Asia-Teco 12VDC Electric Mortise Drop Bolt Lock with Key Cylinder
Upgrade your access control setup with the Asia-Teco B9L 12VDC Electric Mortise Drop Bolt Lock — a robust, fail-secure electronic door lock engineered for commercial, industrial, and residential security applications. Built from durable aluminum alloy with a stainless steel locking tongue, this mortise drop bolt lock delivers reliable, low-power operation with the added convenience of an integrated key cylinder for manual override.
Key Features
- Fail Secure (NO Lock): The door remains locked when power is off — ideal for high-security environments where locking integrity must be maintained during a power outage.
- Adjustable Time Delay: Selectable 0, 3, or 6-second delay (0–6 seconds adjustable) allows smooth, controlled entry and exit timing.
- LED Status Indicators: Green LED for unlocked state; Red LED for locked state — instant visual confirmation at a glance.
- Door Status Signal Output: Built-in contact signal output lets you integrate with access control panels, alarm systems, or building management systems.
- Integrated Key Cylinder: Manual key override provides a reliable backup entry method even in the absence of power or electronic access.
- Dual Wiring Mode: Supports both power-on unlock and power-off unlock configurations (factory set per order requirement).
- CE & FCC Certified: Meets international safety and electromagnetic compliance standards.
Technical Specifications
| Model | B9L |
| Material | Aluminum Alloy |
| Working Voltage | DC 12V |
| Working Current | 80 mA (0.08A) |
| Starting Current | 1,300 mA (1.3A) |
| Lock Type | Fail Secure (Power Off = Locked) |
| Time Delay | 0 / 3 / 6 seconds (adjustable 0–6s) |
| Locking Tongue | Stainless Steel, Ø12.5mm, Pop-up Length 15mm ± 1mm |
| LED Indicators | Green = Unlocked, Red = Locked |
| Wiring | Red = Positive (+), Black = Negative (−) |
| Operating Temperature | −10°C to +55°C (14°F to 131°F) |
| Certifications | CE, FCC |
| High-Concern Chemicals | None |
| Country of Origin | Made in Mainland China |
What's Included
- 1 × Asia-Teco B9L Electric Mortise Drop Bolt Lock
- Key Cylinder with Keys
- Mounting Hardware
Ideal Applications
This electric drop bolt lock is perfectly suited for office doors, server rooms, access-controlled corridors, apartment entryways, and any environment requiring dependable electronic locking with manual backup. Its low working current of just 80mA makes it highly energy-efficient for 24/7 deployment in integrated access control systems.
For guidance on best practices for electronic access control and door hardware security, refer to the U.S. Consumer Product Safety Commission (CPSC) for hardware safety standards, and NIST Cybersecurity Resources for broader physical and electronic security system guidance.
Frequently Asked Questions
Q: What does "fail secure" mean for this electric mortise drop bolt lock?
A: Fail secure means the lock remains in the locked (closed) position whenever electrical power is interrupted or cut off. This ensures the door stays secured during a power outage, making it the preferred choice for server rooms, secure offices, and other high-security access points.
Q: Can I configure this electric door lock for power-on unlock or power-off unlock?
A: Yes. The Asia-Teco B9L supports both power-on unlock (energize to open) and power-off unlock (de-energize to open) configurations. The factory default is set based on your specified requirement at the time of order. Please verify your access control system's requirements before installation.
Q: What is the purpose of the adjustable time delay on this drop bolt lock?
A: The adjustable time delay (0, 3, or 6 seconds) controls how long the lock stays in the unlocked state after an access signal is received. This is useful in high-traffic environments where you want the door to re-lock automatically after a person passes through, without needing a manual trigger.
Q: Is this lock compatible with standard access control systems?
A: Yes. The Asia-Teco B9L operates on standard DC 12V, making it compatible with the vast majority of commercial access control panels, keypads, card readers, and intercoms. The door status signal output contact also allows seamless integration with alarm systems and building management platforms.
Q: Does this electric lock include a key cylinder for manual override?
A: Yes, the lock comes with an integrated key cylinder, allowing manual unlocking with a physical key. This is an essential backup feature for emergencies or situations where electronic access is unavailable.