QVIS PSU-5A-5B 5 Port Multi Port CCTV Power Supply, 12V DC 5A, Self-Resetting PTC
| Output current | 5A |
|---|
£59.60 inc VATAvailable
CCTV Power Supplies
A CCTV power supply must give your cameras 12V DC with enough current for all of them together. Six units are listed: QVIS 5 port, a 16 channel 250W box, three 18 channel boxes at 15A, 20A and 30A, and a 12V 7Ah sealed lead acid battery for backup. Add up each camera's draw and leave spare capacity.
- Part number QVIS-PSU-5A-12V-18CH
- Part number ULTRATECH-UT-1270
UltraTech UT-1270 12V 7Ah Sealed Lead Acid Battery, F1 4.8mm Faston Terminals
£17.71 inc VATAvailable - Part number PSU-BOX-12V-20A-16CH-BACKUP-BU240
16 Channel 250W 12V 20A CCTV Power Supply Box, BU240, Battery Backup Charging
Output current 20A £64.91 inc VATAvailable - Part number PSU-BOX-12V-30A-18CH
18 Channel 12V DC 30A CCTV Power Supply Box, Fused Outputs, Lockable Metal Case
Output current 30A £52.98 inc VATAvailable - Part number PSU-BOX-12V-20A-18CH
CCTV Power Supply Box, 18 Channel 12V DC 20A, PTC Fused Outputs, Lockable Metal Case
Output current 20A £39.73 inc VATAvailable - Part number PSU-BOX-12V-15A-18CH
18 Channel 12V DC 15A CCTV Power Supply Box, Fused Outputs, Lockable Metal Case
Output current 15A £35.76 inc VATAvailable
12V CCTV power supplies
Most analogue and HD-over-coax cameras run on 12V DC. A single 12V adapter powers one camera. A power supply box feeds many from one place: the boxes here give 15A, 20A or 30A in total, with individually fused outputs on the fused models, so one fault does not take down the rest.
Working out the size
Add up the current each camera draws, then leave some spare capacity. Count the cameras to find how many outputs you need. A 16 channel box with battery backup has a charging circuit for a 12V sealed lead-acid battery, which keeps the cameras running if the mains drops.
Wiring it
Shotgun cable carries power and video in one run: see CCTV cable. DC plugs and screw terminals are in connectors.