Ajax 6V PSU Power Supply Board for Hub 2, Hub 2 Plus & ReX 2

Ajax 6V PSU (Type A) Power Supply Board for Hub 2, Hub 2 Plus & ReX 2

The Ajax 6V PSU is a compact internal power board that lets a Hub 2, Hub 2 Plus, or ReX 2 range extender run from a portable battery instead of the mains. It fits directly inside the device enclosure in place of the standard 110/230V power supply, giving installers a fast way to deploy Ajax hubs and extenders on sites with no reliable electricity, such as vacant buildings, construction sites, boats, or seasonal properties.

Key Features

• Battery-powered operation: Accepts an external 4.2–10V DC source, such as a zinc-air alkaline battery, for long-term standalone running.
• Simple internal fitment: Replaces the pre-installed mains PSU inside the Hub 2, Hub 2 Plus, or ReX 2 housing with only a screwdriver required.
• Stable regulated output: Delivers a regulated 4.8V output (±3%) at up to 1.5A to reliably power the connected hub or extender.
• Wide input current range: Draws roughly 2.2A at 4.2V down to 0.8A at 10V, suiting a range of portable battery types.
• Terminal adapter included: Comes with a terminal adapter alongside the standard power jack plug for flexible wiring options.
• Compact, lightweight board: Small footprint designed to sit neatly inside the existing device casing without modification.
• Built for tough conditions: Rated for operation from -10°C to 40°C and up to 75% humidity.
• Extended warranty: Backed by a 24-month manufacturer warranty from the date of sale.

Keeping Sites Protected Without Mains Power

This power board is ideal for security integrators who need to protect properties that lack a stable electrical connection. By fitting the Ajax 6V PSU into a Hub 2, Hub 2 Plus, or ReX 2 and connecting a portable or zinc-air battery, the system can continue monitoring intrusion, fire, and flood detectors, and relay alerts through the Ajax app for an extended period. It suits mothballed houses, building sites, remote outbuildings, and other locations where running mains power isn't practical or where a backup supply is needed during outages.

What's in the Box

• 1 x 6V PSU (Type A) power supply board
• 1 x Terminal adapter
• Quick start guide

Frequently Asked Questions

Which devices is this power board compatible with?
It is designed specifically for the Ajax Hub 2, Hub 2 Plus, and ReX 2 range extender.

Does it come with a battery?
No, the battery is sold separately. Ajax recommends zinc-air alkaline batteries with an operating voltage of 4.2–10V for best long-term results.

Can I use this alongside the standard mains PSU?
No, an Ajax hub or extender can only run from one power supply at a time, so this board replaces the standard 110/230V unit inside the device.

Additional Resources

• More info