Choosing a UniFi Access Lock
In addition to selecting UniFi Access Control Hubs and UniFi Access Readers, choosing the right lock is essential for a fully functional UniFi Door Access control system. This article outlines the requirements and key considerations for selecting a compatible lock. If you are looking for instructions on how to wire a lock to a hub, click here.
Lock Requirements
- A UniFi's official lock, or
- A third-party electric lock supporting either 12V DC 1A or 24V DC 1A. Click here for common electric locks.
- Lock with 12V DC 1A connects to the hub's POWERED relay terminal.
- Lock with 24V DC 1A connects to the hub's DRY relay terminal and requires an external transformer for power.
Lock Comparison
The table below provides a comparison of UniFi's official locks.
| Lock Type | Fail-Safe Lock | Fail-Secure Lock | |
| Model |
Magnetic Lock |
Magnetic Lock |
Electric Lock |
| Holding Force | Holds up to 270 kg (600 lb) | Holds up to 540 kg (1,200 lb) | Holds up to 1,200 kg (2,645 lb) |
| Door Compatibility | Aluminum, steel, wooden, and full glass door |
Aluminum, steel, and wooden door |
Aluminum, steel, and wooden door |
| Voltage | 12V DC | 12V DC | 12V DC |
| Current | 800mA ±10% |
500mA ±10% |
400mA ±10% |
| Hub Terminal Connection | Connect to NC/COM terminals | Connect to NC/COM terminals | Connect to NO/COM terminals |
For a full list of product specifications, visit techspecs.ui.com.
Fail-Safe and Fail-Secure
Locks are categorized based on their response to power loss. Choose the type that best suits your needs:
- Fail-Safe Lock: Automatically unlock during a power loss, ensuring safe egress. Ideal for emergency exits and building entry/exit doors.
- Fail-Secure Lock: Remain locked during a power loss, maintaining security for restricted areas such as data storage rooms.
Magnetic Lock
Magnetic Lock is designed for fail-safe applications, unlocking during power loss to ensure occupant safety. For a detailed wiring guide, see UA-Lock-Magnetic-270kg or UA-Lock-Magnetic-540kg.
Electric Lock
Electric Lock (UA-Lock-Electric) is designed for fail-secure applications, remaining locked during power loss to protect sensitive areas. For a detailed wiring guide, click here.
FAQs
What is misalignment, and how can it be prevented?
Misalignment occurs when the Magnetic Lock and its metal plate aren't properly lined up when the door is closed, preventing the magnetic force from securing the door. Correcting this alignment issue is essential to ensure the lock functions properly and security is maintained.
How to prevent misalignment:
- Adjust the lock or metal plate for correct alignment.
- If necessary, modify the door frame and mounting hardware to avoid alignment issues.
What is preload, and how can it be prevented?
Preload occurs when pressure exerted on a door's latch transfers to the electric lock, making it difficult to release and potentially preventing electronic unlocking. The UniFi Electric Lock does not support operating under preload conditions.
How to prevent preload:
- Ensure the door and lock are perfectly aligned during installation to prevent tension.
- Avoid applying pressure on the door that could cause tension between the latch and the keeper.
What are the common third-party electric locks?
Here are common electric locks compatible with Access Control Hubs. Ensure they support 12V DC 1A or 24V DC 1A (with an external transformer) for proper power and connection.
Electric Bolt Lock
Uses a solenoid to extend or retract a metal bolt based on an electrical signal, securing or unlocking the door.
Electrified Deadlatch
Combines a traditional deadlatch with electronics to retract or extend the latch for access control.
Electrified Mortise Lock
Fits into a mortise pocket and uses electronics for remote or integrated access, offering added security with a built-in deadbolt.