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12V PSU for NVR.
An internal power supply board for a compatible NVR installation using low-voltage power.
Keep recording with a different power source.
12V PSU for NVR replaces the mains power board inside the original Ajax NVR (8-ch) or NVR (16-ch). It enables operation from a suitable external low-voltage supply. For recording during a mains outage, the recorder, cameras and network must all have the power they need; backup duration depends on that complete setup.
Key features. At a glance.
8–16 V DC
Operating input range without the jumper.
12.1–16 V DC
Operating input range with the jumper.
12 V output
Nominal voltage ±3%; maximum 2 A.
Original NVR
For NVR (8-ch) and NVR (16-ch).
Terminal adapter
Included for the low-voltage connection.
Specialist installation
Replaces the internal mains supply board.
Made for real installations.
For the original Ajax NVR.
NVR (8-ch) and NVR (16-ch)
This board replaces the standard mains supply inside these original NVR models. It is installed within the recorder enclosure; it is not an external power adapter.
NVR HAC (8-ch and 16-ch), in the NVR H family, is not intended for disassembly or board replacement. Compatibility with NVR H2D or Superior NVR H2D is not established. NVR DC versions already have a low-voltage input.
Plan power for the whole video system.
An external low-voltage source
Use a suitable DC supply or battery-backed arrangement within the selected voltage range. The board provides nominal 12 V output (±3%), up to 2 A. At maximum output load, input current can reach 4 A.
The board itself is not a battery or an automatic UPS. Continued recording requires powered cameras, network equipment and a working storage drive. The external source, battery and backup duration are planned separately.
Choose the operating voltage range.
Without the jumper
The operating input range is 8–16 V DC. The listed no-load switching thresholds are 8 V to turn on and 6.5 V to turn off.
The turn-off threshold is not the minimum rated operating voltage.
A board replacement, done by a specialist.
Installed inside the recorder
A qualified specialist isolates the recorder from power, replaces the original mains board, sets the jumper for the chosen source and reconnects the recorder according to the manual. The supplied terminal adapter supports the power connection.
- Included: 12V PSU for NVR, terminal adapter and quick start guide.
- Indoor conditions: 0 to +40 °C, up to 75% humidity; IP20.
- After installation, check external power status in the Ajax app and test recording, playback and the intended backup arrangement.
Disconnect power before opening the enclosure. Never apply mains voltage to this low-voltage board.
Find the right power accessory.
Check whether 12V PSU for NVR is suitable for your exact recorder. Plan the external power source and the installation together.
Check recorder compatibility →Every detail, in one place.
Input without an installed jumper
- Device operating voltage range
- 8–16 V⎓
- Maximum current consumption
- up to 4 A When output maximum current consumption is 2 A.
- Turn-on threshold when the voltage rises
- 8 V⎓ In the no-load state.
- Turn-off threshold when the voltage drops
- 6.5 V⎓ In the no-load state.
Input with an installed jumper
- Device operating voltage range
- 12.1–16 V⎓
- Maximum current consumption
- up to 4 A When output maximum current consumption is 2 A.
- Turn-on threshold when the voltage rises
- 12.1 V⎓ In the no-load state.
- Turn-off threshold when the voltage drops
- 10.35 V⎓ In the no-load state.
Output
- Nominal voltage
- 12 V⎓ ± 3%
- Shutdown device’s current consumption
- 110 μA
- Quiescent device’s current consumption
- 65 mA
- Maximum device’s current consumption
- 2 A
Installation
- Installation method
- into the NVR enclosure by replacing the bundled power supply board
- Operating temperature range
- from 0 °С to +40 °С
- Operating humidity
- up to 75%
- Protection class
- IP20
Power supply connection
- Connector slot
- 6.5 × 2.0 mm Power jack (female).
- Connector
- 5.5 × 2.1 mm Power jack (male).
- Connected cable cross-section
- AWG 12–14
Board
- Color
- N/A
- Dimensions
- 118 × 123 × 17 mm
- Weight
- 51 g
What’s in the box
- 12V PSU for NVR
- Terminal adapter
- Quick start guide
For your installation
- Confirm the exact NVR hardware generation before selecting the PSU.
- Installation replaces the internal power board and is performed by a specialist.
- Low-voltage source and reserve capacity are selected for the complete recorder installation.