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ASSA ABLOY
  • Electromechanical
  • Electromagnetic Lock

A4 and A8 Single Series Monitored Electromagnetic Lock

General Description:  

The Single Series Electromagnetic Locks operate with holding forces from 250kg up to 580kg. Covering a range of applications the A4 and A8 Electromagnets are ideal for applications from Standard 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 Z4 and Z8 models.

• Instantaneous release: smart electronics on the Z Series Electromagnets eliminate residual magnetism

Monitoring: 

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) 

Applications: 

• Aluminium doors

• Glass doors

• IT Storage rooms

• Access control

• Surface mount for inswing and outswing doors

A4 and A8 Single Series Monitored Electromagnetic Lock 

A4 Magnet

A8 Magnet

Holding force

250-280kg

550-580kg 

Voltage

12Vdc/ 24Vdc ±1 0% 

12Vdc/ 24Vdc ±1 0% 

Current

450mA@(12Vdc)

225mA@ (24Vdc)

512mA@(12Vdc)

256mA@(24Vdc)

Monitoring 

Hall-Effect/Bond sensing & Reed Switch

Hall-Effect/Bond sensing & Reed Switch

Operating temperature

-10 to 55 Degrees

-10 to 55 Degrees

Operating humidity

0-95%

0-95%

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