Electromagnetic Door Lock Dymo HARTTE MG280SR 280kg with Monitoring and Signalling

The Dymo HARTTE MG280SR electromagnetic door lock provides a 280 kg (approximately 617 lb) holding force for reliable magnetic locking of single doors. Designed for integration with access control systems, alarm panels and exit sensors, this lock includes monitoring and signalling outputs that report lock status and support remote supervision. The unit is suitable for both commercial and residential entrances where a monitored locking solution is required.

Advantages

The MG280SR offers a compact aluminium body with strong holding power while maintaining a low profile suitable for standard frame and door installations. Built-in monitoring and signalling outputs enable connection to control panels and building management systems to provide door state feedback and alarm triggering. The electromagnet is intended for continuous duty, giving steady performance for high-frequency access points.

Suitable for

• Single-leaf entrance doors in offices, shops and apartment buildings
• Integration with access control panels and keycard systems
• Remote monitoring via alarm systems and building management
• Doors requiring failsafe operation where the magnet releases power-off

When it may not be suitable

This electromagnetic lock is designed for applications where a high holding force and monitored status are required; it may not be appropriate for heavy-duty industrial doors that exceed the holding capacity or for use on doors without sufficient metal plate alignment for reliable adhesion. It also requires a compatible power supply and wiring for the monitoring outputs, so installations without electrical infrastructure or with only mechanical locking may not benefit from its features.

Key specifications

• Holding force: 280 kg
• Operation mode: magnetic (failsafe — releases on power loss)
• Suitable door type: single-leaf doors
• Monitoring: lock status output for remote supervision
• Signalling: dedicated signalling output for integration with alarm systems
• Construction: aluminium housing designed for frame or door mounting
• Duty cycle: continuous operation suitable for frequent use

How to use

Install the electromagnetic lock on the door frame aligned with the armature plate mounted on the door leaf. Connect the power supply according to local electrical codes and wire the monitoring and signalling outputs to the access control panel or alarm system as required. Verify alignment and gap tolerance between magnet and armature to ensure full contact and rated holding force. Test the lock status feedback and emergency release (power-off) behaviour during commissioning.

What to consider before purchase

• Verify that a 280 kg holding force meets the security requirements for your door and application
• Ensure door frame and leaf materials allow proper mounting and magnetic adhesion
• Confirm availability of a compatible power supply and wiring path for monitoring outputs
• Check compatibility with your access control or alarm system for signalling connections

Usage recommendations

For reliable long-term operation, keep the contact surfaces clean and properly aligned, use a regulated power supply with correct voltage and current ratings, and schedule periodic inspections of mounting hardware and wiring. During installation, follow manufacturer installation guides and local safety standards to ensure compliant and safe operation.