Electric Bolt Lock DC12V Timer Delay NC/NO Fail Safe & Secure

Asia-Teco 8-Wire Electric Bolt Lock with Timer Delay Feedback

Upgrade your access control system with the Asia-Teco 8-Wire Electric Bolt Lock — a versatile, heavy-duty mortise door lock built for commercial and residential use. Engineered from durable aluminum alloy and rated for over 500,000 operational cycles without failure, this lock delivers rock-solid reliability for years of continuous use. Made in Mainland China.

Fail Safe vs. Fail Secure — What's the Difference?

• Fail Safe (NC — Normally Closed): The door remains locked when power is ON. Power loss causes the bolt to retract, allowing exit. Ideal for emergency egress compliance.
• Fail Secure (NO — Normally Open): The door remains unlocked when power is ON. Power loss causes the bolt to extend, securing the door. Best for high-security environments where lockdown is required during outages.

Simply select the mode that matches your security requirement — both options are available with this single model.

Key Features

• ✅ Adjustable Time Delay: Three selectable delay settings — 0s, 3s, or 6s — for flexible access control workflows
• ✅ Feedback Signal Output: Built-in lock status feedback supports integration with alarm panels, access controllers, and monitoring systems
• ✅ Dual NC / NO Output: Compatible with virtually any access control system — 8-wire wiring harness included
• ✅ Aluminum Alloy Body: Narrow-panel, low-profile design (200 × 28 × 38 mm) fits standard mortise door slots with ease
• ✅ Wide Door Compatibility: Suitable for glass doors, metal doors, wooden doors, and more
• ✅ Anti-Tamper Stability: No external interference once locked — engineered to resist forced entry attempts
• ✅ Low Power Consumption: Operates at DC 12V / 0.08A for energy-efficient, continuous operation
• ✅ 500,000+ Cycle Lifespan: Rated for long-term, high-frequency use without performance degradation

Technical Specifications

What's in the Box?

• 1 × Electric Bolt Lock (B8L-NC or B8L-NO)
• Mounting hardware
• 8-wire connection harness

Learn More About Access Control & Door Security

For guidance on best practices in electronic access control systems, visit the U.S. Consumer Product Safety Commission (CPSC) for general product safety information relevant to electronic locking devices.

Frequently Asked Questions

Q: What is the difference between Fail Safe (NC) and Fail Secure (NO) on this electric bolt lock?

A: In Fail Safe (NC) mode, the bolt is extended (door locked) when power is applied. If power is cut, the bolt retracts and the door can open — ideal for emergency egress situations. In Fail Secure (NO) mode, the door remains unlocked while power is on, and the bolt automatically extends to lock the door if power is lost — best for high-security environments that require automatic lockdown during outages.

Q: What types of doors is this electric bolt lock compatible with?

A: The Asia-Teco electric bolt lock is designed for a wide range of door types, including glass doors, wooden doors, metal doors, and composite doors. Its narrow-panel profile (200 × 28 × 38 mm) fits standard mortise cutouts, making installation straightforward across most residential and commercial door frames.

Q: Can I integrate this lock with an existing access control or alarm system?

A: Yes. The 8-wire design includes a feedback signal output that communicates the real-time lock status to access control panels, alarm systems, or building management systems. The NC/NO output options ensure compatibility with virtually all standard access control hardware operating at DC 12V.

Q: How do I adjust the time delay on this electric bolt lock?

A: The lock features a three-gear delay adjustment allowing you to set the unlock delay to 0 seconds, 3 seconds, or 6 seconds. This is configured directly on the lock body, providing flexibility for different access flow scenarios without requiring additional external hardware.