The Lockwood EMZ4-SM Mini Mag Electromagnetic Lock is a surface-mounted, monitored 280kg magnetic lock with fail-safe (PTL) operation and dual 12/24Vdc voltage selection. Fire rated up to 4 hours and designed for timber, steel, aluminium, and glass doors, it delivers reliable commercial access control performance.
Secure commercial doors with the Lockwood EMZ4-SM Mini Mag Electromagnetic Lock, a surface-mounted, monitored solution from ASSA ABLOY’s trusted Padde Series. Designed for flexibility and durability, this single electromagnetic lock delivers up to 280kg holding force, making it ideal for high-use swing doors and access-controlled areas.
With fail-safe (PTL) operation, dual voltage 12/24Vdc selection, and integrated monitoring, the EMZ4-SM provides dependable performance for both new installations and retrofit projects.
Model: EMZ4-SM
Key Features
280kg Holding Force – Strong magnetic locking for commercial doors
Monitored Output – Reed switch monitoring for lock and door status
Fail-Safe (PTL) – Unlocks automatically when power is removed
Dual Voltage 12/24Vdc – Site selectable for flexible installation
Surface Mount Design – Ideal for retrofit and exposed applications
Self-Aligning Armature Plate – Pivots to accommodate door drop
Fire Rated up to 4 Hours – Tested to AS1905.1.2005 standards
CE Approved & C-Tick Certified
Suitable for Timber, Aluminium, Steel & Glass Doors
5 Year Tricare Warranty (Padde Series)
Ideal Applications
Commercial offices
Education facilities
Healthcare sites
Retail environments
Glass door installations
High-use swing doors
Access-controlled cupboards and secure areas
Why Choose the Lockwood EMZ4-SM?
Compact yet powerful 280kg holding force
Surface mount for easy installation
Integrated monitoring functionality
Fire-rated for compliant installations
Silent operation with smart electronics
Trusted ASSA ABLOY engineering
Backed by a 5-year Tricare warranty
The Lockwood EMZ4-SM Mini Mag is a versatile and reliable electromagnetic locking solution for commercial applications requiring monitoring, fire compliance, and clean surface-mounted installation.
Not sure which lock you need?
Tell us your door construction, swing direction, indoor/outdoor exposure, and if you need monitoring. We’ll recommend the best fit and brackets.
Magnetic door locks work by using a magnet to hold the door closed. The magnet is typically located on the door frame, and the metal armature is located on the door. When the door is closed, the magnet and armature come together and create a strong magnetic force that holds the door in place.
Monitored magnetic door locks are connected to a central security system. This allows the system to monitor the status of the door and to generate an alarm if the door is opened without authorization.
Monitored magnetic door locks are more secure than non-monitored door locks, but they are also more expensive.
Non-monitored magnetic door locks are not connected to a central security system. This means that they cannot generate an alarm if the door is opened without authorization.
Non-monitored magnetic door locks are less secure than monitored door locks, but they are also less expensive.
Magnetic door locks are used in a variety of commercial and industrial settings, including:
Office buildings
Schools
Hospitals
Hotels
Retail stores
Warehouses
Factories
Magnetic door locks are very difficult to pick or force open, making them a good choice for securing valuable assets. However, it is important to note that no lock is completely foolproof, and a determined thief may still be able to break into a door that is secured with a magnetic lock.
Installing a magnetic door lock is a relatively simple process that can be completed in a few minutes. The first step is to mark the location of the magnet and armature on the door frame and door. Once the locations are marked, the magnet and armature can be attached using the included screws.
If your magnetic door lock is not working properly, there are a few things you can check. First, make sure that the magnet and armature are properly aligned. If they are not, the lock will not be able to create a strong enough magnetic force to hold the door closed. Second, check the wiring to make sure that there are no loose or damaged connections. Finally, check the power supply to make sure that it is providing enough power to the lock.
Magnetic door locks are very secure. They are difficult to defeat, even by experienced burglars.
Magnetic door locks are very reliable. They are not subject to mechanical failure, like traditional door locks.
Magnetic door locks are very convenient. They can be opened with a key card, a key fob, or a password.