RUIJIE RG-NIS-PA120-54 - POWER SUPPLY

The Ruijie Reyee RG‑NIS‑PA120‑54 is a robust 120 W industrial‑grade DIN‑rail power supply engineered to deliver stable, continuous 54 V DC output for mission‑critical networking, surveillance and automation systems. Designed for harsh industrial environments, it provides high electrical efficiency, wide input compatibility and comprehensive protection features, making it ideal for powering Ruijie Reyee industrial switches, PoE systems, CCTV networks and field‑deployed equipment.

Built with a universal AC input range of 90–264 V AC, the RG‑NIS‑PA120‑54 ensures reliable operation across global electrical standards and unstable grid conditions. It delivers a regulated 52.38–55.62 V DC output at 2.2 A, providing up to 120 W of clean, stable power for industrial devices. This output specification is confirmed across multiple datasheet sources.

Engineered for long‑term reliability, the RG‑NIS‑PA120‑54 features a fanless thermal design, eliminating moving parts and ensuring silent operation while reducing dust buildup. Its MTBF exceeds 150,000 hours, supporting continuous operation in demanding environments.

The power supply includes comprehensive protection mechanisms, such as short‑circuit, over‑current, over‑voltage, over‑temperature, surge protection (4 kV common‑mode / 2 kV differential‑mode), and ESD protection (8 kV air / 6 kV contact). These safeguards ensure stable operation and protect connected equipment from electrical anomalies.

Designed for harsh industrial conditions, the RG‑NIS‑PA120‑54 operates reliably from –40°C to +70°C, with thermal derating curves for extreme temperatures. It supports 5%–95% non‑condensing humidity and installation altitudes from –500 m to 5000 m, making it suitable for factories, warehouses, transport hubs and outdoor control cabinets.

The unit features a compact metal DIN‑rail chassis measuring 35 × 100 × 125 mm and weighing 0.48 kg, allowing easy integration into industrial control panels and network enclosures. A front‑panel DC OK LED indicator provides real‑time status monitoring.

Certified to CE, EN 55032, IEC 61000‑4‑2/4/5/6, and EN 62638‑1, the RG‑NIS‑PA120‑54 meets stringent safety and EMC standards required for industrial deployments. Its fanless, noiseless design and rugged metal housing make it ideal for continuous operation in environments where reliability is paramount.

Perfect for powering Ruijie Reyee industrial switches such as the RG‑NIS3100‑4GT2SFP‑HP and RG‑NIS3100‑8GT2SFP‑HP, the RG‑NIS‑PA120‑54 delivers dependable 54 V DC power for PoE systems, CCTV networks, automation controllers and field networking equipment. It stands as one of the most reliable and efficient DIN‑rail power supplies in the Reyee industrial lineup, offering stable performance, wide environmental tolerance and long‑term durability.