Product Description
What it does
The BU240 is a single 12V DC power supply that feeds up to 16 CCTV cameras from one box, instead of wiring sixteen separate plug adapters around a site. It takes 100–240V AC mains and regulates it down to 12V DC, delivering 20A total output shared across the 16 channels.
Why the fusing matters
Each of the 16 outputs is individually fused. If one camera or cable develops a fault, that channel's fuse isolates it — the other 15 cameras keep running, and you can spot the tripped channel quickly via the LED status indicators rather than testing every run.
Backup power
A built-in charging circuit supports a 12V sealed lead-acid backup battery. If mains power fails, the unit switches to battery automatically, so cameras stay live through the outage rather than going dark — worth having on any installation where gaps in recording aren't acceptable.
Fitting it in
It's built into a lockable metal enclosure for wall mounting, with internal terminal blocks for organised camera and battery wiring — suited to a comms cupboard, plant room or security cabinet rather than an open shelf. It's designed for analog, HD-TVI, AHD and CVI 12V camera systems needing centralised power with backup.
Before buying, check your camera count and total current draw fit within the 20A budget, and confirm you have a 12V SLA battery (or plan to add one) if backup power is a requirement.
Specifications
- Voltage
- 100–240V
- Current
- 20A
- Power
- 250W
Technical Specifications
Frequently Asked Questions
How many cameras can the BU240 power?
It has 16 individually fused 12V outputs sharing a total of 20A, so how many cameras it supports depends on each camera's current draw.
Does it keep cameras running in a power cut?
Yes — it has a built-in charging circuit for a 12V sealed lead-acid battery and switches to it automatically if mains power fails.
Is this suitable for HD-TVI or AHD cameras, or only analog?
It's designed for 12V analog, HD-TVI, AHD and CVI camera systems, since the supply just provides regulated 12V DC power rather than handling the video signal.
What happens if one camera cable develops a fault?
Each of the 16 channels is individually fused, so a fault on one channel blows that fuse without cutting power to the other cameras.
