18 Channel CCTV Power Supply Box 12V DC 20A Fused Distribution Unit

The PSU-BOX-12V-20A-18CH powers up to 18 cameras from one locked box. It takes standard 100–240V AC mains and turns it into regulated 12V DC, splitting a 20A total output across 18 separate channels — the sort of setup you'd use once a system grows past a couple of individual plug-top adapters.

Why this matters when buying

• Fault isolation: each of the 18 channels has its own PTC fuse (a resettable fuse that trips on overload), so one faulty camera or a short on one run shouldn't take down the rest.
• Status at a glance: an LED per channel lets you see which outputs are live during install or when troubleshooting.
• Camera compatibility: rated for 12V DC analog, HD-TVI, AHD and CVI cameras and other 12V security gear — check your cameras are genuinely 12V DC before wiring in.
• Physical security: the metal enclosure is lockable, meant for wall-mounting in a cabinet, utility space or comms room rather than out in the open.

Before you buy

Add up the current draw of all cameras you intend to connect and make sure it sits comfortably under the 20A total — that's shared across all 18 channels, not 20A per channel. If cameras run flickering or drop out at night, that's often down to insufficient power at the camera end (long cable runs cause voltage drop), so a stable centralised supply like this can help, but cable quality and length still matter.