AJAX 12V PSU for NVR (AJA-112255)

The Ajax 12V PSU for NVR is a compact internal power supply module designed to replace the standard 110/230V input in Ajax NVR units. It allows the NVR to operate from low-voltage DC sources, making it ideal for installations requiring backup power or use in areas with unstable mains supply. Supporting input ranges of 8–16V DC or 12.1–16V DC depending on jumper configuration, it delivers a stable 12V output at up to 2A continuous (4A peak).

The unit fits neatly inside the NVR enclosure and installs in just minutes using a standard PH1 screwdriver. Built with professional-grade components, it includes protection features like under-voltage shutdown to prevent battery damage. With a slim profile, durable polycarbonate casing, and IP20 rating, it operates reliably in indoor environments from 0°C to +40°C and up to 75% humidity. Ideal for enhancing system resilience with uninterrupted video recording during power outages.

Key Features:

• Works with 8–16 V DC or 12.1–16 V DC power sources
• Provides 12 V output with up to 2 A continuous or 4 A peak current
• Automatically turns on and off based on safe voltage thresholds
• Uses very low power in standby and shutdown modes
• Operates in temperatures from 0 °C to +40 °C with up to 75% humidity
• Compact and lightweight (118 × 123 × 17 mm, 51 g)
• Installs quickly inside Ajax NVR using standard tools