CUS500M1 Series 3" x 5" Medical Industrial Power Supplies

TDK Corporation's TDK-Lambda brand CUS500M1 AC/DC power supplies are rated at 500 W and is packaged in a 3” x 5” footprint. They provide an alternative for the 600 W CUS600M models and an easy cost reduction for lower power, more cost sensitive applications. The CUS500M1 is suitable for use in a wide range of Class I or Class II (double insulated) applications, including home healthcare, medical, dental, test and measurement, broadcast, and industrial equipment.

The CUS500M1 series accepts an 85 V_AC to 264 V_AC input and has a choice of seven output voltages: 12 V, 19 V, 24 V, 28 V, 32 V, 36 V, and 48 V. An integral fan option with cover is also available. The open frame models measure 76.2 mm x 127 mm x 37 mm (W x L x H), or 85 mm x 157 mm x 42.5 mm with the cover/fan assembly fitted.

Convection cooled, the CUS500M1 can deliver 300 W (500 W peak) in -20°C to +40°C ambient temperatures, derating linearly to 150 W load at +70°C. With forced air cooling or the integral fan fitted, the series provides up to 500 W in a +60°C ambient, derating to 400 W at +70°C. The efficiency of the series is up to 96%, reducing internal power losses.

The CUS500M1 has an input to output isolation of 4,000 V_AC (2 x MoPP), an input to ground isolation of 2,000 V_AC (1 x MoPP) and an output to ground isolation of 1,500 V_AC (1 x MoPP) for suitability in B and BF rated medical equipment. The leakage current is <200 µA and the touch current is <100 µA. The maximum operating, transportation and storage altitude is 5,000 m.

Safety certifications include IEC/EN/ES 60601-1 and IEC/EN/UL 62368-1 with CE and UKCA markings for the low voltage, EMC, and RoHS directives. The units also comply with EN 55011-B and EN 55032-B conducted and radiated emissions (for Class II applications, external filtering may be required), and meets the EN 61000-3-2 harmonics, IEC60601-1-2 Edition 4 and IEC 61000-4 immunity standards.