Excelsys Technologies announces the CoolX600 series of convection-cooled modular power supplies that deliver 600-W output power with fanless, natural convection cooling up to 40°C ambient, with no derating. Designed to meet both medical and industrial global safety specifications at 5,000-m altitude, the power supply series exceeds 93% efficiency even in harsh, remote applications that can be subject to input voltage line surge disturbances of up to 300 Vac. The supplies offer input surge protection of 4 kV and reverse energy protection without using blocking diodes. They also provide a 25-W standby power output to provide another output for system intelligence, cooling fans, and displays.
There are several competitive 600-W power supplies with fans, some with temperature-controlled fans that are not on all of the time. However, there are only a few that can provide 600-W with no fan because that means that they need to be highly efficient (usually about 93% to 94% efficiency). For example, the LCC600 power supply from Artesyn offers similar specs for fanless power, but the main difference is the warranty. The Excelsys unit provides a five-year warranty, compared to two years for the Artesyn model. Another 600-W fanless supply from Mean Well has similar specs, but it has a much larger footprint. The CoolX600 series is offered in an 8.5 x 4.5-in. x 1U package, while the Mean Well product is larger at 11.02 x 5.67 x 1.91 in.
The supplies are field-configurable, allowing customers to configure and reconfigure without voiding warranty or affecting safety. They feature leakage current of www.excelsys.com
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