UltraPoE PS-DC20A18VAR 1U Rack 18-Channel 12V CCTV Power Supply, 20A Metered
UltraPoE PS-DC20A18VAR is a 1U rack-mount CCTV power supply with 18 protected 12V DC output channels, a shared 20A total capacity, and front-panel voltage and current monitoring. Its adjustable output helps compensate for cable voltage drop in centralized security installations.
Key Features
- 18 monitored output channels: Front LEDs provide at-a-glance status for channels 1 through 18.
- Digital voltage and current display: Front meters show system output conditions for faster setup and troubleshooting.
- Adjustable DC output: Nominal 12V DC output can be adjusted up to approximately 14V.
- 20A shared total capacity: Supports up to 240W nominal across all connected loads.
- Resettable PTC protection: Individual protected branches help isolate short-circuit or over-current faults.
- Dedicated DVR outputs: Two rear 5A terminals are provided alongside the camera channels.
- Rack installation: Black 1U metal enclosure with integrated rack ears.
- Green removable terminals: Simplifies field wiring and service access.
Technical Specifications
| Model | PS-DC20A18VAR |
|---|---|
| Form factor | 1U rack mount |
| AC input | 110/220V AC selectable |
| Output voltage | 12V DC nominal, adjustable up to approximately 14V |
| Total output current | 20A shared across all outputs |
| Maximum output power | 240W nominal |
| Camera channels | 18 protected outputs with LED indicators |
| Additional outputs | Two 5A DVR terminals |
| Fuse type | Resettable PTC |
| Available PTC ratings | 1.1A to 3A, configuration dependent |
| Operating temperature | -10°C to 40°C |
| Listed certifications | CE, RoHS |
Typical Applications
Centralized rack power for compatible 12V DC CCTV cameras, analog HD cameras, PTZ cameras, IR illuminators, DVR accessories, LED drivers, access-control equipment, and other low-voltage security devices. IP cameras require a separate compatible 12V DC input; this unit does not provide PoE.
Installation Notes
All connected loads share the 20A system capacity. Confirm the installed PTC rating for each branch, total operating current, startup current, polarity, cable size, and voltage drop. Adjust output voltage only within the connected equipment manufacturer's permitted range.
Frequently Asked Questions
What do the front displays show?
The two digital meters show output voltage and total output current, while 18 individual LEDs indicate channel status.
Can I raise the output voltage for long cable runs?
Yes. The output is adjustable up to approximately 14V to compensate for voltage drop. Measure voltage at the load and do not exceed the device rating.
Can every channel use the maximum PTC rating simultaneously?
No. The branch fuse rating and the shared power capacity are different limits. The combined load across all outputs must remain within 20A.
Does it provide Power over Ethernet?
No. It distributes low-voltage DC through the green rear terminals and does not send power over network cabling.
Download the PS-DC20A18VAR specification sheet