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After launching SDR-240 (240W) and SDR-480 (480W) high performance single output slim DIN rail series, MEAN WELL continues to extend its product coverage to lower wattage applications. For the growing demand of low to medium wattage with high performance and space saving requirements, SDR-120 (120W) series, the AC/DC isolation Class I power units, are formally introduced to the market now.
With up-to-date circuit design, SDR-120 series possess up to 91% of high efficiency and can provide 120W continuously or 180W peak power for 3 seconds up to 55~60℃ by only free air convection. With built-in active PFC function, SDR-120 is a full range AC input (88~264VAC) switcher that fulfills the requirement of EN61000-3-2 for harmonic current. The slim design of 40mm in width helps save the precious space on the rail and also makes it 30.69% smaller in size compare to its predecessor model DR-120 (120W). Meanwhile, SDR-120 also has 5~9% higher efficiency than corresponding models of DR-120, which response to the trend of green power with energy saving concept.
Other standard functions include DC OK relay contact, on panel LED indicator, and protection for short-circuit, overload (constant current limiting, shut down if over 3 seconds), over voltage, and over temperature. To fulfill the requirements of marine and semi-conductor related usage, SDR-120 also complies with GL and SEMI F47 norms in addition to UL, CUL, TUV, and CE certificates. Suitable applications are factory automation, semi-conductor fabrication equipment, marine related installation, and electro-mechanical applications.
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