Concealed Electromagnetic Shear Lock DC 12V/24V Access Control
Concealed Electromagnetic Shear Lock DC 12V/24V Access Control
Asia-Teco Concealed Electromagnetic Shear Lock — High-Security Door Access Control
The Asia-Teco Concealed Shear Lock (Model 1200SL/1300SL) is a premium embedded electromagnetic locking solution engineered for high-security access control systems. By combining powerful electromagnetic force with mechanical shear force, this lock delivers exceptional holding strength while maintaining a completely discreet, flush-mounted appearance within your door frame. Compatible with both DC 12V and DC 24V power supplies, it integrates seamlessly with modern access control systems, fire alarm panels, and building security infrastructure.
Made in Mainland China.
Key Features
- Dual-Force Locking Mechanism: Combines electromagnetic and shear forces for outstanding holding strength that resists forced entry attempts.
- Concealed / Embedded Installation: Designed for flush installation inside the door frame or door leaf — preserving the aesthetic integrity of any door design.
- Adjustable Time Delay: Selectable delay locking function of 0, 3, 6, or 9 seconds for flexible access control workflows.
- Dual Feedback Signals: Two groups of dry contact feedback signals (NC and NO) for integration with access control panels and alarm systems.
- No Mechanical Wear: Primarily magnetic operation means no moving parts to degrade over time — resulting in a long service lifespan.
- Fast Locking & Unlocking: Near-instantaneous electromagnetic response makes it ideal for high-traffic security checkpoints.
- Wide Temperature Range: Operates reliably from -40°C to +55°C, suitable for both indoor and outdoor installations.
- Fire & Emergency Compatible: Integrates with fire alarm systems to automatically release during emergencies, preventing occupants from being trapped.
Technical Specifications
- Model Number: 1200SL / 1300SL
- Working Voltage: DC 12V – DC 24V
- Working Current (DC 12V): Starting 1.6A | Maintaining 0.22A
- Working Current (DC 24V): Starting 1.0A | Maintaining 0.13A
- Adsorption Spacing: Within 4mm
- Delay Locking: 0 / 3 / 6 / 9 seconds (adjustable)
- Feedback Signal: NC (short circuit COM when locked) / NO (disconnect COM when locked)
- Ambient Temperature: -40°C to +55°C
- Installation Method: Drilling / Embedded installation (horizontal or vertical)
- Brand: Asia-Teco
How It Works
When current flows through the built-in electromagnet, it generates a strong magnetic field that draws the iron strike plate firmly into contact, simultaneously driving the lock tongue into the strike hole. This dual electromagnetic-plus-shear action creates a robust locking point that is highly resistant to lateral and pulling forces. Cutting power releases the lock instantly, allowing smooth door operation.
Installation & Adjustment Notes
- Professional installation by a qualified technician is recommended to ensure correct alignment between the lock body and the iron plate.
- Loosen the iron plate fastening screws, adjust the spacing to 3–4mm between the lock and iron plate, then re-tighten.
- The lock and adsorption plate must be mounted in direct alignment — any dislocation will reduce locking performance.
- After installation, power on and listen for a clean engagement. A "click" or failure to lock indicates the gap needs fine adjustment (always keep gap above 2mm).
- If the iron plate does not rebound upon unlocking, slightly increase the spacing between the lock body and the plate.
- Connect to a stable power supply. For uninterrupted security, a UPS (uninterruptible power supply) or battery backup is strongly recommended.
Ideal Applications
- Office and commercial building access control
- Server rooms and data centers
- Government and institutional facilities
- Residential security doors and gates
- Hotels, hospitals, and multi-tenant buildings
- Any environment requiring high-security, fast-response door control
For general guidance on physical security and access control best practices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What is the holding force of this concealed electromagnetic shear lock?
A: The Asia-Teco 1200SL/1300SL shear lock combines electromagnetic and mechanical shear forces to deliver high holding strength suitable for high-security doors. Exact rated holding force by model variant is specified on the product dimension diagram included with the unit. This dual-force design makes it significantly harder to breach than a standard surface-mount magnetic lock.
Q: Can this shear lock be installed on both single and double doors?
A: Yes. The concealed electromagnetic shear lock supports both horizontal and vertical installation orientations, making it compatible with single-leaf and, in paired configurations, double-leaf doors. Professional drilling and embedded installation is required for proper alignment.
Q: What happens to the lock during a power outage or fire alarm?
A: The lock can be integrated with fire alarm systems to automatically release when an alarm is triggered, ensuring safe egress. For continuous security during general power outages, connecting the lock to a UPS (uninterruptible power supply) or battery backup is strongly recommended to maintain locking function.
Q: Is this lock compatible with standard access control systems and keypads?
A: Yes. The lock includes NC and NO dry contact feedback signals, making it compatible with a wide range of access control panels, card readers, keypads, biometric readers, and building management systems that support standard relay-output controllers.
Q: How do I adjust the time delay on the shear lock?
A: The lock features a built-in adjustable delay locking function with four settings: 0, 3, 6, or 9 seconds. The delay can be configured via the onboard selector switch during installation, allowing you to tailor the lock's behavior to your specific access control workflow.