Installing electromagnetic locks for doors is a common solution for modern access control systems. These locks, often called mag locks, secure doors using magnetic force instead of mechanical latches. Because they contain no moving parts, they are highly durable and require minimal maintenance compared to traditional locking mechanisms.

Electromagnetic locks are widely used in commercial buildings, healthcare facilities, schools, and office spaces where controlled access and reliable security are essential. When installed correctly, they provide strong holding forces while maintaining fail safe operation, meaning the door unlocks automatically if power is lost.

Understanding the installation process helps ensure the lock functions properly and integrates smoothly with your access control hardware.

How Electromagnetic Locks Work

Before installation, it's helpful to understand how electromagnetic locks operate.

A mag lock system consists of two primary components:

• The electromagnet, mounted to the door frame
• The armature plate, mounted to the door

When the lock receives power from the system’s power supplies, the electromagnet creates a magnetic field that bonds to the armature plate. This magnetic force keeps the door securely closed.

Because electromagnetic locks are fail safe, they unlock automatically during a power outage. This feature is important for emergency exits and fire safety compliance in many commercial buildings.

You can explore different models of magnetic locks designed for access control installations by reviewing the available options in the magnetic lock category.

Tools and Hardware Required for Installation

Installing a mag lock requires basic installation tools and compatible access control components.

Common installation items include:

• Drill and drill bits
• Mounting brackets (often Z or L brackets)
• Screwdrivers
• Electrical wiring tools
• Power supply or access control panel
• Alignment template from the manufacturer

Most electromagnetic lock kits include mounting hardware, but installers must ensure the system is compatible with the building’s existing access control configuration.

In many installations, electromagnetic locks work alongside other door locks, card readers, request-to-exit sensors, or push-to-exit buttons.

Step-by-Step Installation Process

1. Determine the Mounting Location

Electromagnetic locks are typically installed at the top of the door frame on the secure side of the door.

The electromagnet mounts to the frame while the armature plate attaches to the door itself. This configuration ensures the magnetic force distributes evenly when the door closes.

Proper alignment is critical for achieving the rated holding forces.

2. Install the Electromagnet on the Door Frame

Using the manufacturer’s template, mark the drill points on the door frame.

The electromagnet housing is then secured using mounting screws or brackets. Many installations require L brackets or Z brackets when mounting space is limited.

Once mounted, the electromagnet must sit flush against the frame so the armature plate can make full contact when the door closes.

3. Attach the Armature Plate to the Door

The armature plate mounts directly to the door and aligns with the electromagnet.

Unlike traditional locking hardware, the armature plate must remain slightly flexible. Most installations use a special bolt that allows minor movement so the plate can fully align with the magnet when the door closes.

This flexibility ensures the magnet creates maximum contact and maintains the full magnetic force.

4. Connect the Power Supply

Electromagnetic locks require a dedicated power supply or connection to an access control panel.

Typical voltage configurations include:

• 12V DC
• 24V DC

The wiring must follow the manufacturer’s diagram to ensure proper polarity and consistent operation. In access control systems, the lock wiring may pass through a control board, relay, or reader device.

Because these locks are fail safe, cutting power automatically releases the lock.

5. Integrate with the Access Control System

After wiring the lock, it should be integrated with the building’s access control system.

Common access devices include:

• Keypads
• Card readers
• Motion sensors
• Push-to-exit buttons
• Intercom systems

When a valid credential or exit request is detected, the system briefly cuts power to the lock, allowing the door to open.

6. Test the Door and Alignment

Once installation is complete, the system should be tested thoroughly.

Check that:

• The magnet engages when the door closes
• The door releases when the system cuts power
• The armature plate aligns fully with the magnet
• The door closes smoothly without obstruction

Proper alignment ensures the lock achieves its full rated magnetic strength.

For a deeper explanation of how strength ratings affect security, see How Much Holding Force Do You Need in a Magnetic Lock? (INSERT LINK) 

Electromagnetic Locks vs Electric Strike Locks

Many installers compare mag locks with electric strike locks, which operate differently.

Electric strikes modify the door frame to release a mechanical latch, while electromagnetic locks secure the door using magnetic force.

Electromagnetic locks are often preferred for:

• High security applications
• Glass door installations
• Retrofit projects
• Buildings using advanced access control systems

Because they do not rely on mechanical latches, they can also simplify installation in some commercial environments.

Common Installation Mistakes to Avoid

Even though installation is relatively straightforward, several mistakes can affect performance.

Misaligned Armature Plate

Improper alignment reduces magnetic contact and weakens holding force.

Incorrect Power Supply

Using incompatible voltage can damage the lock or prevent proper operation.

Poor Wiring Connections

Loose or incorrect wiring can cause inconsistent locking behavior.

Incorrect Door Type

Mag locks must be installed on doors capable of supporting the hardware and weight requirements.

When to Use Electromagnetic Locks

Electromagnetic locks are widely used in commercial access control environments.

Typical installations include:

• Office buildings
• Schools and universities
• Healthcare facilities
• Retail storefronts
• Industrial security entrances

Their reliability, strong magnetic holding forces, and simple design make them a preferred solution for controlled access systems.

Installers can explore a range of compatible hardware within the door locks category, including electromagnetic solutions designed for professional access control installations.