Cosel, japan, manufactures ac/dc power converters, supplied by powertec supplies. These are suitable for professional and control equipment applications, where a high level of emc compatibility and compliance to international safety standards are required. These convertors include inputs having range from 85 to 264 v ac with a frequency range of 47 hz to 440 hz in addition 110-370 v dc and are available from 3 v to 48 v dc output with operating temperature from -10° c to 60° c. These are current limited and capable of enduring overloads for inductive loads and short circuits. Outputs are crowbar clamped and have overshoot protection. The units are put in ventilated metal enclosures for instrument racks and chassis mounts. All units undergo 20 g shock impact, 10 g vibration for 60 minutes in x, y and z axes. All products conforms international safety approvals of ul1950, iec950, tuv, en-60950, csa22.2, vde0160, vfg243/91, dentori and ce markings. Apart from rf noise clearance of fcc, all sources carry vcci-2 and vfg 243/91.
