Mean Well Introduces 480W Slim DIN Rail Type Power Supplies
Mean Well introduced its 480W WDR 480 Series of ac-dc slim DIN rail power supplies that feature a single phase wide input range.. Built-in active PFC function, the power units meet the harmonic current limitation per EN61000-3-2. Equipped with 180 to 550Vac single phase wide input range, they can be used in general power system with single phase 230Vac input or can capture one phase from the 330~550Vac three-phase power system, which can greatly increase the flexibility of system deployment.
With up-to-date LLC and synchronize rectify technology, the WDR-480 series possess up to 93% of extremely high efficiency and can provide 480W continuously up to 50° by only free air convection, or operate under 70° ambient temperature by suitable power derating. The slim design of 85.5mm in width helps save the precious space on the rail and also makes it 51.6% smaller in size compare to its predecessor model DRT-480 (480W, 340~550Vac/ 3-phase). Meanwhile, with wider input range, WDR-480 also has 3% higher efficiency than corresponding models, which response to the trend of green power with energy saving concept.
Other standard functions include DC OK relay contact alarm signal output, front panel dc voltage adjustment , as well as protection for short-circuit, overload (constant current mode, shut down if over 3 seconds), over voltage, and over temperature. WDR-480 series comply with UL508, IEC60950-1 (CB), and CE certificates and also meet the EMC requirements of heavy industrial immunity level (EN61000-6-2). Suitable applications include industrial control system, semi-conductor fabrication equipment, factory automation, electro-mechanical applications, and marine related installation, etc.
