Compact, efficient and powerful – these are the three key features of the new three-phase Sitop PSU300S power supplies and the single phase Sitop PSU100C device versions. The narrow footprint of the power supplies only requires a small mounting area. Because of their high efficiency, the new models consume less energy and generate less waste heat than comparable devices on the market.
The Siemens Sitop Smart power supply line has been extended by two new versions of the Sitop PSU300S power supply for three-phase mains connection. To complement to the already available power supply with a 20A rated current, the new versions offer 10 and 40A rated output currents. The 10A power supply comes in a metal enclosure just 90mm wide.
The 40A device requires a 145mm space on a DIN rail. The compact size is achieved through the high efficiency of over 91 percent, which reduces the development of heat and makes a voluminous heat sink superfluous. The Sitop PSU300S power supplies are optimized for standard requirements in automated machines and plants which require a stabilized direct voltage of 24V. The high-performance power supplies can deliver 1.5 times the rated current for five seconds, such as during the start up of loads with a high current demand. An integrated signaling contact enables a controller to evaluate the operating state of the power supply as a "24V O.K." statement.
The power supplies can also be combined with redundancy modules, selectivity modules and DC UPS modules (uninterruptible direct current power supply). With their three-phase wide-range input for alternating current from 340 to 550V together with comprehensive certification for all standard applications, the PSU300S devices have been designed for use throughout the world.
Siemens has added three higher-output versions of the single phase Sitop PSU100C power supply to the Sitop Compact power supply line. The two 24V versions supply 2.5 and 4A rated output currents respectively, the 12V version has been designed to deliver a 6.5A rated output current. With overall widths of only 45 and 52.5mm, the new Sitop power supplies are especially suitable for decentralized use in the lower power range of up to 100W, such as installation in switch boxes and small control cabinets. Like all the models in the product line, the new DIN rail devices are characterized by high efficiency throughout the entire load range and low no-load losses of less than 1W. The wide-range input facilitates connection to single phase alternating current networks with voltages of 120 and 230V, or to direct voltage networks with voltages between 110 and 300V. Detachable clamp-type terminals allow the use of pre-assembled wiring and make it easy to exchange devices. The power supplies are suitable for universal use in an operational temperature range from -20 to +70 degrees Celsius.
The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of environmentally friendly production, transportation, building and lighting technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six Divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility and Osram. With around 207,000 employees worldwide Siemens Industry posted sales of about EUR35 billion in FY 2009. http://www.siemens.com/industry
The Siemens Industry Automation Division (Nuremberg, Germany) is a global leader in the fields of automation systems, industrial controls and industrial software. Its portfolio ranges from standard products for the manufacturing and process industries to solutions for whole industrial sectors that encompass the automation of entire automobile production facilities and chemical plants. As a leading software supplier, Industry Automation optimizes the entire value added chain of manufacturers – from product design and development to production, sales and a wide range of maintenance services. With around 39,000 employees worldwide (September 30), Siemens Industry Automation achieved sales of €7.0 billion in FY 2009. www.siemens.com/industryautomation
Reference Number: IIA2010112607e
Peter Jefimiec | Siemens Industry
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