Ajax 12-24V PSU (Type A) Low-Voltage Power Supply for Hub 2 & ReX 2

Ajax 12-24V PSU (Type A) Low-Voltage Power Supply for Hub 2 & ReX 2

The Ajax 12-24V PSU (Type A) is an alternative internal power supply board designed for the Hub 2 control panel and ReX 2 range extender. It replaces the standard 110/230V~ power supply unit inside the device enclosure, allowing the hub or extender to run directly from a low-voltage DC source such as a car battery, solar setup, or vehicle electrical system. This makes it a practical solution for securing locations without reliable mains power, including vans, trucks, boats, caravans, and remote sites.

Key Features

• Wide input voltage range: Accepts 8–32V DC, suitable for automotive, marine, and off-grid battery systems.
• Stable output: Delivers a regulated 4.8V output with current up to 1.5A to power the connected Ajax device.
• Simple drop-in installation: Fits into the existing device enclosure in place of the pre-installed mains PSU, typically installed in around 10 minutes with just a PH1 screwdriver.
• Bundled terminal adapter: Included for flexible wiring to batteries or DC power sources without extra parts.
• Standard power jack: Retains a familiar jack-plug connection for straightforward cabling.
• Broad compatibility: Works with Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, and ReX 2 range extenders.
• Built-in voltage protection: Automatic turn-on and turn-off thresholds help protect the connected hub from under-voltage conditions.
• No ongoing maintenance: The board is designed for reliable, maintenance-free long-term operation once installed.

Ideal for Mobile and Off-Grid Security Installations

This power supply is particularly useful for security integrators protecting assets that don't have consistent access to mains electricity. Typical scenarios include fitting out construction sites, unoccupied buildings, warehouses, camper trailers, delivery vans, trucks with cargo areas, and boats moored at a marina. By swapping in the 12-24V PSU (Type A), installers can keep an Ajax Hub 2 or ReX 2 fully operational using nothing more than a vehicle battery, portable battery pack, or other low-voltage DC supply, extending the reach of Ajax's wireless security ecosystem well beyond standard fixed premises.

What's in the Box

• Ajax 12-24V PSU (Type A) power supply board
• Terminal adapter for DC wiring
• Voltage label sticker for the device enclosure
• Quick start guide

Frequently Asked Questions

Does this replace the original power supply, or work alongside it?
It is installed as a direct replacement for the standard 110/230V~ power supply unit already fitted inside the Hub 2 or ReX 2 enclosure.

Can this be installed by the end user?
Installation involves opening the device enclosure and connecting an internal board, so it should be carried out by a qualified installer familiar with electrical safety practices.

What power sources can I use with it?
Any stable 8–32V DC source is compatible, including car and marine batteries, solar battery banks, and other low-voltage DC supplies.

Additional Resources

• More info