Single A4/A8 Series Monitored Mag Locks

A high quality, reliable and discreet solution to securing doors in your premises


Electromagnetic Locks, operate with holding forces from 250kg up to 580kg. These can also be used for doors that need to be monitored in terms of door position and if the door is locked.

Covering a range of applications the A4 and A8 Electromagnets are ideal for applications from cupboard doors through to high use commercial swing doors.

With fixing options including wood, aluminium and steel constructions, as well as glass door applications, the range caters to most electromagnetic needs.

Key Features

  • Fail-Safe: unlocks when power is removed
  • Easy installation: suitable for both new and retrofit usage
  • High holding force: refer to the technical data overleaf
  • Self-alignment: armature plate pivots to accommodate door drop
  • Silent operation: no humming or buzzing
  • Dual voltage: site selectable 12 or 24 Vdc
  • Monitoring: reed switch monitoring on all models, hall-effect monitoring on A4 and A8 models
  • Instantaneous release: smart electronics on the A Series Electromagnets eliminate residual magnetism
  • 5 Year ASSA ABLOY Warranty
  • Fire rating – Please refer to the List of Approved Hardware with the respective fire door manufacturer


Hall/Bond Monitoring
This indicates that the lock is powered and that the armature plate is in position and magnetically bonded (it monitors if the magnet is locked)

Reed Switch Monitoring
An integrated reed switch monitors the door position separately (it monitors the position of the door)


  • Aluminium doors
  • Glass doors
  • IT storage rooms
  • Access control
  • Surface mount for inswing and outswing doors


A4 MagnetA8 Magnet
Holding Force250-280 Kg550kg-580kg
Dimensions(L)240 x (H)48.5 x (D)25mm(L)265 x (H)71.8 x (D) 39 mm
Voltage12Vdc/24Vdc +/- 10%12Vdc/24Vdc +/- 10%
Current500mA @ (12Vdc)
250mA @ (24Vdc)
420mA @ (12Vdc)
210mA @ (24Vdc)
MonitoringHall-Effect & Reed SwitchHall-Effect & Reed Switch
Operating Temperature-10 to 55 Degrees-10 to 55 Degrees
Operating Humidity0-90%0-90%