Power supply unit PHOENIX-CONTACT UNO-PS/1AC/12DC/ 30W — 12 V DC, 30 W, 85–264 V AC input

DIN-rail power supply PHOENIX-CONTACT UNO-PS/1AC/12DC/ 30W provides a stabilized 12 V DC output with a maximum total power of 30 W. Intended for industrial control and automation systems, this compact unit accepts a wide AC input range of 85–264 V at 50/60 Hz and is built for continuous operation. The device features a robust design with a grey enclosure suitable for panel and cabinet mounting, low standby losses and documented high reliability expressed by a long mean time between failures.

Advantages

The power supply offers a compact footprint (22.5 × 84 × 90 mm) that saves DIN-rail space while delivering up to 30 W at 12 V DC. Wide-range AC input allows flexible installation across international mains voltages, and high efficiency reduces heat generation and energy consumption. Designed for industrial environments, the unit includes protective features and stable output suitable for sensitive control electronics. Compliance with chemical and safety standards supports use in regulated installations.

Suitable for

Key specifications

How to use

Mount the unit on a standard DIN-rail inside a control cabinet or panel. Connect the AC mains supply within the specified 85–264 V AC range to the input terminals, observing correct phase and protective earth wiring. Connect the 12 V DC output to the load using suitable wire cross-section and secure terminal screws. Ensure the total connected load does not exceed 30 W and verify polarity before powering sensitive devices. Allow adequate ventilation around the unit and avoid installing next to heat sources.

Recommendations

For reliable long-term operation, maintain ambient temperature within the device’s specified operating range and keep the ventilation paths clear. Use fuses or upstream overcurrent protection sized for the installation, and consider adding an input filter or surge protection in environments with unstable mains. Periodically inspect terminal connections for tightness and check for signs of overheating when the system is under load.