Power Supplies

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Energy Efficiency

Power Supplies
Power Supplies

Siemens' Sitop smart product family has been expanded with three single-phase 24 V power supplies with rated output voltag s of 2.5 A, 5 A and 10 A as well as two 12 V power supplies with 7 A and 14 A. The output voltage of the new PSU100S power supplies is adjustable over a wide range from 24 to 28 V with the 24 V power supplies and from 12 to 15.5 V with the 12 V models. All devices can supply 1.5 times the rated current for five seconds per minute, to ensure problem-free starting for loads that draw a high current. The 24 V versions even supply 120 percent rated current at ambient temperatures up to 45 degrees Celsius. The power supplies are designed for standard requirements in automated machines and plants. The new single-phase power supplies feature a signaling contact for evaluating the operating status "Output voltage OK". With widths of only 32.5 mm (24 V/ 2.5 A), 50 mm (24 V/ 5 A and 12 V/ 7 A) and 70 mm (24 V/ 10 A and 12 V/ 14 A) and no sideways clearance requirements, the power supplies require less space on the mounting rail. These slim power supplies feature automatic range switching for connection to 120 V and 230 V supply systems worldwide. A radio suppression level of Class B and line harmonic limiting also permit use on the public low-voltage grid. Certification for GL (Germanische Lloyd) for shipbuilding and ATEX (Atmosphère Explosive) for hazardous environments ensure that the power supplies can be used universally. The power supplies can be used at ambient temperatures from -10 and +70 degrees Celsius and are characterized by a high degree of efficiency of up to 90 percent, which ensures only minimal heat generation in the control cabinet. For protection against faults in the network or in the output circuit, Sitop add-on modules offer enhanced protection for the 24 V power supplies, for example, through conversion to an uninterruptible DC power supply or for selectivity in 24 V feeders.

Posted on August 21, 2012 - (747 views)
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Siemens AG
Gleiwitzer Str. 555
90475 Nürnberg - Germany
+49-911-895-0
+49-911-8957408
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