ASSA ABLOY A4 and A8 Double Series Monitored Electromagnetic Lock

General Description:  

The Double Series Electromagnetic Locks operate with holding forces from 500kg up to 1160kg. Covering a range of applications these magnets are ideal for applications from access ways 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; Hall-Effect and Reed Switch monitoring on all 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

• Double swing doors

• Access control

• Surface mount for inswing and outswing doors

A4 and A8 Double Series Monitored Electromagnetic Lock 

A4 Magnet

A8 Magnet

Holding force

500-560kg

1100-1160kg 

Voltage

12Vdc/ 24Vdc ±1 0% 

12Vdc/ 24Vdc ±1 0% 

Current

900mA@12Vdc 450mA@24Vdc 

1024mA@12Vdc 512mA@(12Vdc)

Monitoring 

Hall Effect / Bond sensing and Reed Switch

Hall Effect / Bond sensing and Reed Switch

Address