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Power supplies for compact control cabinets

15 July 2013

The new Uno Power supply units from Phoenix Contact are designed to supply loads of up to 100 W with 24V DC or 12 V DC in compact control cabinets. Low standby losses and highly efficient operation guarantee a high level of energy efficiency.

The product range comprises five modules. Three housing sizes are said take up very little space in the control cabinet. Power supply units providing 24 V DC output voltage are available in 30W, 60W, and 100W versions; units for 12 V DC consumers are available in 30W and 55W.

All power supplies are said to be energy efficient owing to low no-load losses of less than 0.3W and an efficiency rating optimised for the entire operating ranges.

With an efficiency of up to 90% at nominal load, only a small fraction of the electrical energy is converted into unwanted heat. The range is also UL certified and features a wide-range input.

Uno Power can handle input voltages from 85 to 264 V AC, resulting in reliable operation even in the event of mains grid voltage fluctuations. With an extended mains buffering time of up to 140 ms under full load and MTBFs (Mean Time Between Failure) exceeding 500,000 hours, these power supplies prove exceptionally reliable in operation. Outdoor use is also possible thanks to a broad operating temperature range of -25°C to +70°C.

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