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How to Install and Unlock a Magnetic Door Lock?

August 11, 2026

Quick Answer

Mount the magnet on the door frame and attach the armature plate to the door. Then connect the lock to its power supply and access-control system. To unlock a fail-safe maglock, cut power to the magnet so it releases the armature plate.


What Should You Check Before Installation?

First, figure out how the lock needs to mount. OUBAO documents three common installation methods: surface mounting, recessed mounting, and glass-door mounting.

Your door may need additional mounting hardware. OUBAO’s catalog includes L and Z brackets for several magnetic lock sizes. If you have an access control magnetic lock manual for your model, follow its measurements and wiring instructions rather than using a diagram for a similar lock.

Turn off the power before doing any electrical work. For a commercial installation, check the fire and emergency-egress requirements that apply to the building too.

How Do You Install an Access Control Magnetic Lock?

For a typical access control magnetic lock installation, mark the magnet’s position on the frame. Then see where the armature plate has to sit on the door.

It’s also important to make sure that both mounting surfaces are flat and clean. Hold the hardware securely, drill the necessary holes, and secure each part.

Before you begin wiring, close the door and make sure the armature meets the magnet evenly. Not seeing this could mean the lock may have lost some of its holding force.

After the two parts line up well, connect the power supply and then wire the lock to your access-control equipment (make sure to follow the instructions for your model). 

OUBAO’s OB500 Series, for example, operates on 12V or 24V DC. It unlocks when you remove power. Test the door several times before putting it into service.

How Do You Unlock a Magnetic Door Lock?

Unlocking a fail-safe magnetic lock requires you to interrupt the power going to the magnet. The way to do that can vary based on the access control setup.

Someone might enter a code or present a card. In case of a magnetic door lock with remote control, you should be able to release the command remotely. Meanwhile, it’s possible to use a key-operated electrical switch to trigger the release for a magnetic door lock with key.

In each case, the system cuts power to the magnet. The magnetic force disappears, allowing you to open the door.

OUBAO checks its magnetic locks for residual magnetism. This helps the armature release instead of sticking to the magnet after you cut the power.

What If the Magnetic Lock Doesn’t Hold Properly?

If the lock has power but feels weak, look at where the magnet meets the armature. Make sure the surfaces are clean and meeting evenly.

A loose armature can cause problems too. After checking the hardware, confirm that you’re supplying the voltage specified for your lock.

Using a magnetic door lock kit? Follow the documentation supplied with that particular kit. Don’t assume its wiring matches another product you’ve installed before.

Be careful with access control magnetic lock reviews for the same reason. A reviewer may blame the lock for weak holding when the real problem is poor alignment or the power supply.

OB50 Series – Magnetic Lock for Cabinet
  • ApplicationCabinet, display case & fixture
  • Power Consumption100mA @ 12VDC
  • CertificationsCE, FCC, RoHS, REACH
View Product
OB50 Series – Magnetic Lock for Cabinet

What Changes in a Commercial Access-Control System?

A single-door setup can be fairly simple. A commercial magnetic door lock system gets more involved when several entrances share access-control equipment.

With door access control systems for business, one controller may handle several doors. It may also communicate with multiple readers and release devices. Check that the maglock’s voltage works with that setup before you install it. You should also confirm any monitoring and release features you need.

Hi, welcome to OUBAO.
This article comes from the OUBAO Team, drawing on our long experience in door control hardware and real-world manufacturing projects. We hope the information below gives you a clearer and more practical way to look at this topic.
Exploring a specific project or have a question along the way? We’d be happy to share our thoughts.
OUBAO door control manufacturer

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