Phoenix UNO-PS/1AC/5DC/25W 5VDC Power Supply
UNO-PS/1AC/5DC/25W is a Phoenix 5VDC Power Supply 2904374 delivering 5 V DC output at 5 A current for automation. Manufactured by Phoenix Contact, this Phoenix power supply from the UNO Series supports 85–264 V AC input, 85 % efficiency, DIN rail mounting, IP20 protection, low ripple, and 4 kV AC insulation.

| Brand | Phoenix Contact |
| Product Type | Power Supply |
| Model Number | UNO-PS/1AC/ 5DC/ 25W |
Phoenix UNO-PS/1AC/5DC/25W 5VDC Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Nominal input voltage range | 100 V AC ... 240 V AC |
| Input voltage range | 85 V AC ... 264 V AC |
| Inrush current | < 30 A (typ.) |
| Frequency range (fN) | 50 Hz ... 60 Hz ±10 % |
| Efficiency | typ. 85 % (120 V AC) |
| Nominal output voltage | 5 V DC |
| Nominal output current (IN) | 5 A (-25 °C ... 55 °C) |
| Residual ripple | < 40 mVPP (with nominal values) |
| Short-circuit-proof | yes |
| Power loss nominal load max. | < 4.5 W |
| Insulation voltage input/output | 4 kV AC (type test) |
| Mounting type | DIN rail mounting |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -25 °C ... 70 °C (> 55 °C Derating: 2.5 %/K) |
| EMC requirements for noise emission | EN 61000-6-3 |
| EMC requirements for noise immunity | EN 61000-6-1 |
The Phoenix UNO-PS/1AC/5DC/25W 5VDC Power Supply 2904374 is designed for reliable low-voltage DC power delivery in industrial automation systems. It provides a regulated 5 V DC output with 5 A nominal current and operates across a wide AC input range. This model belongs to the UNO Series and is commonly installed in compact industrial control panels.
In industrial automation environments, this power supply is used in conveyors, packaging equipment, assembly stations, and auxiliary control circuits. It supplies stable voltage to controllers, sensors, communication modules, and interface devices. DIN rail mounting enables organized panel layouts, while controlled ripple supports consistent operation during continuous industrial use.
The UNO-PS/1AC/5DC/25W from Phoenix Contact, identified as Phoenix 5VDC Power Supply 2904374, meets standard industrial electrical requirements. With IP20 protection, high insulation strength, and low power loss, it supports dependable long-term operation. As part of the UNO Series, it integrates smoothly into established industrial automation architectures.







