A4 and A8 Single Series Non Monitored

The Single Series ElectromagneticLocks operate with holdingforces from 250kg up to 280kg. Covering a range of applicationsthe A4 and A8 Electromagnets are ideal forapplications 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
  • Instantaneous Release: smart electronics on the A Series Electromagnets eliminate residual magnetism
  • 5 Year ASSA ABLOY Warranty


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

Standards and Compliance

  • CE Approved
  • RCM Certified

A4 Magnet
Holding Force 250kg - 280kg
Dimensions (L)240 x (H)48.5 x (D)25mm
Voltage 12Vdc/ 24Vdc ±10%
Current 500mA @ (12Vdc) 250mA @ (24Vdc)
Monitoring Hall-Effect (Optional)
Operating Temperature -10 to 55 Degrees
Operating Humidity 0 - 90%

Holding Force 550kg - 580kg
Dimensions (L)265 x (H)71.8 x (D) 39 mm
Voltage 12Vdc/ 24Vdc ±10%
Current 420mA @ (12Vdc) 210mA @ (24Vdc)
Monitoring Hall-Effect & Reed Switch
Operating Temperature -10 to 55 Degrees
Operating Humidity 0 - 90%

Specification Statement
The Single Series Electromagnetic Lock should be constructed in an aluminium case with heavy duty electromagnet. The range only operates in Fail Safe mode and relies on a secondary lock or battery back up system. In some cases the Magnet Armature Plate pivotsto accommodate door drop. The lock needs to beequipped with “smart electronics” that have zero residual magnetism (instantaneous release). This is crucial for correct operation.

Monitored Lock

Non Monitored Lock


Monitored and Non Monitored Lock

Ordering information
Ordering Information
Description Part Number
EMA4 E/Magnet 12/24Vdc Single Non Monitored
EMA8 E/Magnet 12/24Vdc Single Non Monitored