Product Description
PSU-BOX-12V-20A-18CH: 18-channel, 20A distributed 12V DC PSU
Answer first: this is a single 100–240V AC-to-12V DC power distribution unit with 18 individually fused outputs sharing a 20A total budget, built for consolidating multi-camera 12V power runs into one lockable enclosure.
Key specs
- Input: 100–240V AC mains
- Output: 12V DC regulated, 20A total across 18 channels
- Fusing: individual PTC (resettable) fuse per channel
- Status: LED indicator per output channel
- Enclosure: metal, wall-mount, lockable front cover
Load planning
20A is a shared budget across all 18 outputs, not 20A per channel — average per-channel draw needs to stay within that total once every camera is connected. On longer cable runs, voltage drop under load is worth checking during commissioning, since IR-heavy cameras pull more current at night and a marginal circuit can show as flicker or dropout after dark.
Fault isolation and status checking
Each channel's PTC fuse is there to trip locally on a short or overloaded run rather than pulling down the other 17 outputs — useful when one camera or cable fails on an otherwise stable system. The per-channel LEDs let you confirm which outputs are actually live during install or when tracing a fault later, without opening the enclosure or metering each pair.
Compatibility
Suitable for powering analog CCTV, HD-TVI, AHD and CVI cameras and other 12V DC security devices — confirm each camera's rated voltage before wiring in, as this unit is 12V DC output only.
Installation
The lockable metal enclosure is intended for wall-mounting inside cabinets, comms rooms or utility spaces where tamper control matters on site.
Specifications
- Voltage
- 100–240V
- Current
- 20A
Frequently Asked Questions
Is the 20A rating per channel or shared across all 18 outputs?
It is a total output capacity of 20A shared across all 18 channels, not 20A available on each individual channel.
What happens if one camera on this PSU develops a fault?
Each channel has its own PTC fuse, so a shorted cable or faulty camera on that run is intended to isolate locally rather than cut power to the other 17 channels.
What camera types can this power?
It supplies regulated 12V DC suitable for analog, HD-TVI, AHD and CVI cameras and other 12V DC security devices — confirm each camera is rated for 12V DC before connecting.
