CCTV Power Supplies

The voltage its label or data sheet states, usually 12V DC for analogue and many IP cameras, from a supply rated above the current the camera draws. Adapters such as the Folk Safe FS-12D1000-A at 12V 1A suit a single small camera, while a PTZ camera may need a larger supply or PoE. Check the plug size too, commonly a 2.1mm barrel.

Add up the current the cameras draw and keep the total below the supply rating, with some headroom. The Haydon HAY-PSUMULTI5A has 9 outputs sharing 5A and the HAY-PSUMULTI10A 16 outputs sharing 10A, and the Folk Safe FS-DC121820B has 18 fused outputs sharing 20A, about 1.1A per channel. A 1A plug-top adapter such as the FS-12D1000-A suits one camera.

Yes, with a battery-backed supply and a charged standby battery. Haydon boxed PSUs such as the HAY-PSU12V3ABB, which takes a 7Ah battery, and the HAY-DC24V5ABBLPSU switch to the battery when the mains fails, and the Folk Safe FS-DC121820B has an internal bay for a 7–20 Ah sealed lead-acid battery, sold separately. Runtime depends on the battery size and the load.

When the camera or device is rated for 24 VAC. Haydon 24 VAC supplies include the HAY-PSU4/1-1/4A24 with four 1A outputs or one 4A output, the HAY-PSU8/1-1/8A24 with eight 1A outputs or one 8A output, and the inline HAY-PSUINLINE3A24 at 3A. The HAY-PSU4/1-1/4A24 and HAY-PSU8/1-1/8A24 protect their outputs with auto-reset PTC fuses.

With a PoE midspan injector fitted between the network switch and the camera. The Hikvision LAS60-57CN-RJ45 injects up to 60W at 54–57V DC onto one Gigabit link, which suits a PTZ or other high-power network camera, and runs from 90–264 VAC mains. Data passes through on its two RJ45 ports, one in and one out.

Yes, with the Hikvision DS-2XS6K01-C36S80 solar power kit. The DS-2XS6K01-C36S80 combines an 80W panel with a 360Wh lithium battery pack and gives 9–12.6V DC at up to 30W through two 5.5mm plugs, which suits most Hikvision outdoor cameras. The DS-2XS6K01-C36S80 enclosure is IP66, and no camera comes in the kit.

The EZVIZ CS-TRANSFORMER BT16 (CS-CMT-A0), a DIN-rail transformer that converts 230 V AC mains to a selectable 8 V, 12 V or 24 V AC output rated at 8 VA. It mounts on a 35mm DIN rail in an enclosure and should be installed by an electrician; check the doorbell model is compatible before fitting it.

Yes, with a DC splitter lead, as long as the adapter can supply the combined current. The Haydon DC04 splits one 2.1mm input into four 2.1mm outputs, carrying up to 1 Amp per output, and the Folk Safe FS-DC1F4M does the same with 5.5×2.1mm plugs. For more than a few cameras, a boxed multi-output PSU with fused outputs is tidier.

Several can. The Haydon HAY-ACCESS12V5A-4W is a 12V 5A boxed access control PSU with battery backup, four fused fire-interface outputs and room for two Paxton NET2 controllers, and Haydon 24V DC units such as the HAY-DC24V2ABBLPSU suit intruder and access control systems. Check the load current and battery size against the equipment it will run.