Description
Product Description
The ZKTeco CM-280S Overhead Electromagnetic Lock is a high-strength security locking solution designed for modern access control systems. It uses powerful electromagnetic force to securely lock doors until power is released through an access control device such as a fingerprint machine, RFID reader, or intercom system.
With a holding force of up to 600lbs (approximately 280kg), this lock ensures reliable security for single doors in commercial and residential environments. Its overhead installation design makes it suitable for glass doors, wooden doors, and metal doors, providing flexible installation options.
The CM-280S operates on a fail-safe mechanism, meaning the door automatically unlocks during power failure, ensuring safety compliance. It is widely used in offices, banks, buildings, and secure entry points.
Key Features
- High-strength electromagnetic locking system
- Holding force: 600lbs (approx. 280kg)
- Overhead installation design
- Compatible with access control systems
- Suitable for glass, wood, and metal doors
- Fail-safe operation (unlocks on power failure)
- Durable aluminum alloy body
- Low power consumption
- Strong and stable security performance
Technical Specifications
Lock Type
- Type: Overhead electromagnetic lock
- Installation: Surface mounted (top frame)
Holding Force
- Force: 280kg / 600lbs
Electrical
- Operating Voltage: 12V DC / 24V DC (depending on setup)
- Current: Low power consumption
- Mode: Fail-safe (power off = unlocked)
Material
- Body: Aluminum alloy
- Armature Plate: High-strength steel
Compatibility
- RFID Access Control Systems
- Fingerprint Attendance Machines
- Intercom Systems
- Door Access Controllers
Installation
- Door Type: Single door
- Mounting: Overhead frame installation
Environment
- Usage: Indoor / controlled entry points
- Operating Temperature: Standard commercial range
Use Cases
- Office entrances
- Commercial buildings
- Glass door systems
- Apartment access control
- Secure restricted areas









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