Ajax 12V PSU for NVR Low-Voltage Power Supply Board (112255)
Product Features
- 12V PSU for NVR low-voltage power board for Ajax NVR recorders (112255).
- 8-16 V DC input so the NVR can run from a 12 V source.
- 12 V output at up to 2 A to the recorder, tolerance 3%.
- Fits inside the NVR in place of the bundled power supply board.
- Indoor use 0 °C to +40 °C, IP20; terminal adapter in the box.
Ajax 12V PSU for NVR - 112255
The 12V PSU for NVR is a low-voltage power supply board for Ajax NVR recorders, including the NVR DC models. It is installed inside the NVR enclosure in place of the power supply board that comes with the recorder, so the NVR can run from a 12 V DC source such as a battery-backed supply. The board takes 8 to 16 V DC in, gives a 12 V DC output of up to 2 A to the recorder, and connects through a standard 5.5 × 2.1 mm DC plug with a terminal adapter in the box.
Also listed as 112255. Ajax model ID 12V.NVR.Y.
Key features
- Low-voltage power board for an Ajax NVR, fitted inside the recorder enclosure.
- Replaces the power supply board bundled with the NVR.
- Accepts 8 to 16 V DC at up to 4 A on the input.
- Delivers 12 V DC (± 3%) at up to 2 A to the recorder.
- Jumper option raises the turn-on threshold to 12.1 V and the turn-off threshold to 10.35 V.
- For indoor use, 0 °C to +40 °C, protection class IP20.
Technical specification
| Model numbers | 112255; Ajax model ID 12V.NVR.Y |
|---|---|
| Type | Low-voltage power supply board for the NVR |
| Input voltage, no jumper | 8-16 V DC, up to 4 A; turns on at 8 V, turns off at 6.5 V |
| Input voltage, jumper fitted | 12.1-16 V DC, up to 4 A; turns on at 12.1 V, turns off at 10.35 V |
| Output | 12 V DC ± 3%, up to 2 A |
| Current consumption | Quiescent 65 mA; shutdown 110 μA |
| Connection | Connector slot 6.5 × 2.0 mm; plug 5.5 × 2.1 mm; cable AWG 12-14 |
| Installation | Inside the NVR enclosure, replacing the bundled power supply board |
| Operating environment | 0 °C to +40 °C, humidity up to 75% |
| Protection class | IP20 |
| Dimensions | 118 × 123 × 17 mm |
| Weight | 51 g |
| In the box | 12V PSU for NVR, terminal adapter, quick start guide |
| Certifications | EMC EN 55032 and EN 55035; low voltage EN IEC 62368-1; RoHS EN IEC 63000 |
Works with
Ajax NVR network video recorders that run from a low-voltage supply, such as the NVR DC (8-ch) and NVR DC (16-ch). The board goes inside the NVR in place of its own power board. The 12 V source and the recorder are sold separately.
Common questions
What does it do?
It lets an Ajax NVR run from a 12 V DC source. It sits inside the recorder enclosure in place of the power supply board supplied with the NVR.
What input voltage does it accept?
Without the jumper it accepts 8 to 16 V DC. With the jumper fitted the working range starts higher, at 12.1 V, and the board switches off at 10.35 V.
What power does it supply to the NVR?
Ajax lists a 12 V DC output with a tolerance of 3%, at up to 2 A.
Is a power source included?
No. The box holds the board, a terminal adapter and a quick start guide. The 12 V supply or battery is ordered separately.
Can it go outdoors?
No. Ajax rates it IP20 for 0 °C to +40 °C and humidity up to 75%, and it fits inside the NVR.
Full manufacturer specification: Ajax 12V PSU for NVR product page
Supplied by Zenith Security Co, Wolverhampton. Orders placed before 2:30pm are normally dispatched for delivery within 1-2 working days to England, Scotland and Wales, or collect from our Wolverhampton trade counter (please call first).
Browse the full Ajax range, more Ajax cameras and NVRs, or contact us on 01902 902251 for advice.
| Product Code | 112255 |
|---|---|
| Brand | AJAX |
| Device Type | PSU |
| Product Type | Accessories & Mounts |
| Ajax Range | Baseline |
| Connection Type | Wired |
| Indoor/Outdoor | Indoor Only |
| Colour | Brown |
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