Enclosure with power supply for Dahua KD AWZ637

Buffered power supply for Dahua access control

The AWZ637 power supply enclosure is a reliable solution for Dahua access control systems, providing continuous power and installation security. It is specifically designed to work with ASC2104B-T, ASC2102B-T series controllers and similar, offering a stable 13.8 V DC voltage. This device is not only a power source, but also an element protecting against the effects of power outages and sabotage.

Construction and functionality

The enclosure is made of durable steel sheet (RAL 9005), which guarantees durability and resistance to mechanical damage. Inside there is space for a battery with a capacity of up to 17 Ah/12 V, enabling long-term system operation in the event of a mains power failure. The highly efficient (80%) switch-mode power supply minimizes energy losses and provides a stable output voltage. A built-in microswitch indicates opening of the enclosure, which increases the level of security.

Parameters and protections

The power supply offers an output current of up to 6 A (plus 1 A for battery charging) or 5 A (plus 2 A for battery charging), depending on the jumper setting. It has a number of protections: short-circuit (SCP), overload (OLP), overvoltage (OVP), undervoltage (UVP) and anti-sabotage - signaling opening of the enclosure. Additionally, there are OC and relay outputs signaling mains power failure, power supply failure and low battery level. Inside the enclosure there is a DIN rail 185 mm long, designed for mounting the controller.

Mounting and application

The enclosure is designed for surface mounting and has appropriate mounting holes. The distance from the wall allows for easy cable routing. The power supply is ideal for use in access control systems in office buildings, companies, warehouses and other facilities requiring a high level of security. Thanks to its compatibility with Dahua controllers, it is an integral part of comprehensive security systems.