Overview
The Ubiquiti UACC-Lock-Magnetic-540kg is a fail-safe electromagnetic door lock designed for UniFi Access-controlled entry systems. It provides up to 540 kg (1,200 lb) of holding force for single wooden or metal doors and connects to a compatible UniFi Access Hub. The lock operates from 12V DC and includes an embedded door position sensor for access-control status monitoring.
540kg Holding Force
The magnetic lock is rated for a holding force of up to 540 kg (1,200 lb). This higher-capacity model is designed for single wooden and metal doors and is the 540kg option in Ubiquiti's UniFi Access magnetic lock range.
Fail-Safe Operation
The UACC-Lock-Magnetic-540kg uses a fail-safe locking design. The lock remains engaged while powered and releases when power is interrupted, supporting controlled egress during a power-loss condition.
UniFi Access Integration
The lock connects to a compatible UniFi Access Hub through its lock wiring. Ubiquiti specifies connection through the hub's NC/COM terminals for the magnetic lock. The integrated door position sensor provides an additional signal for monitoring door status.
12V DC Power
The lock operates from 12V DC ±10% and has a specified current consumption of 500mA ±10%. This corresponds to approximately 6W at the nominal 12V supply. The power requirement should be accounted for when sizing the Access Hub and door-lock wiring.
Door Compatibility
The 540kg magnetic lock supports single wooden and metal doors. Ubiquiti's documentation distinguishes it from the 270kg magnetic lock, which additionally supports glass doors. The 540kg model should therefore not be specified for full-glass door installations.
Mounting Hardware
The lock supports L-bracket installation for outward-opening doors and Z-bracket installation for inward-opening doors. The specified L-bracket configuration supports outward-opening doors with a thickness below 42mm.
Integrated Door Position Sensor
An embedded door position sensor is included in the lock assembly. The sensor wiring provides the Access system with a door-position signal in addition to the lock's power connections.
Construction and Environment
The lock body and brackets use aluminum, while the armature is steel. The specified operating temperature range is -10 to 60°C with 5 to 90% noncondensing humidity. The model is also listed by Ubiquiti as NDAA compliant and certified to FCC, IC, and CE requirements.
Key Features
- Up to 540 kg (1,200 lb) magnetic holding force
- Fail-safe operation for controlled release when power is removed
- 12V DC ±10% operation at 500mA ±10%
- Embedded door position sensor
- Supports single wooden and metal doors with L- or Z-bracket mounting
DC Supplies Product Note
The UACC-Lock-Magnetic-540kg requires a 12V DC supply and draws 500mA ±10%. When deployed with a UniFi Access Hub, Ubiquiti specifies a maximum recommended cable length of 80m using 18 AWG UACC-Cable-DoorLockRelay, with shorter limits for smaller conductors. This makes conductor selection and cable distance important when planning the lock circuit.
Specifications
| Specification | Details |
|---|
| Brand | Ubiquiti |
| Part Number / MPN | UACC-Lock-Magnetic-540kg |
| Product Type | Fail-Safe Magnetic Door Lock |
| Product Name | Magnetic Lock 540kg |
| Holding Force | 540 kg (1,200 lb) |
| Lock Type | Fail-Safe |
| Supported Door Type | Single wooden or metal door |
| Power Supply | 12V DC ±10% |
| Current Consumption | 500mA ±10% |
| Nominal Power at 12V | Approximately 6W |
| Door Position Sensor | Embedded |
| Lock Body Dimensions | 266 × 67.5 × 40mm |
| Installation Plate Dimensions | 266 × 40 × 6mm |
| Armature Dimensions | 185 × 61 × 16mm |
| Lock Body Weight | 2.9kg |
| Installation Plate Weight | 145g |
| Armature Weight | 1.4kg |
| Enclosure / Bracket Material | Aluminum |
| Armature Material | Steel |
| Mounting | L bracket for outward-opening doors; Z bracket for inward-opening doors |
| Operating Temperature | -10 to 60°C |
| Operating Humidity | 5 to 90% noncondensing |
| NDAA Compliant | Yes |
| Certifications | FCC, IC, CE |
Frequently Asked Questions
What is the holding force of the UACC-Lock-Magnetic-540kg?
The magnetic lock provides up to 540 kg (1,200 lb) of holding force.
Is the UACC-Lock-Magnetic-540kg fail-safe or fail-secure?
It is a fail-safe magnetic lock. Removing power releases the magnetic holding force.
What voltage does the UACC-Lock-Magnetic-540kg require?
The lock operates at 12V DC ±10% and draws 500mA ±10%.
What doors are compatible with the 540kg magnetic lock?
Ubiquiti specifies single wooden and metal doors for the 540kg model. It is not specified for full-glass doors.
Does the lock include a door position sensor?
Yes. An embedded door position sensor is integrated into the lock assembly.
Can it be used with a UniFi Access Hub?
Yes. Ubiquiti specifies the magnetic lock for connection to a UniFi Access Hub, using the hub's NC/COM terminals for the lock circuit.
