TDK-Lambda's CUS30M and CUS60M series of AC-DC power supplies are rated at 30 W and 60 W output power. Certified to medical and ITE standards for Class I and II operation, the products meet both curve B radiated and conducted emissions without the need for additional filtering or shielding. The CUS30M and 60M target applications include medical, home healthcare, test and measurement, broadcast, industrial controls, and household appliances.
Initially available with 12 V, 24 V, and 48 V outputs, the industry standard 2” x 3” footprint power supplies can accept an 85 VAC to 265 VAC input and have operating efficiencies up to 90%. Off-load power consumption is <0.3 W for the CUS30M and <0.5 W for the CUS60M. The operating ambient temperature range is -20°C to +70°C (-30°C start up), derating to 50% load at 70°C.
Input to output isolation is 4 kVAC (2 x MoPP), input to ground 2 kVAC (1 x MoPP), and output to ground 1.5 kVAC (1 x MoPP) making the series suitable for B and BF rated medical equipment. Touch current for the CUS30M is a maximum of 100 µA and 60 µA for the CUS60M, with leakage current less than 250 µA and 200 µA, respectively, at 265 VAC 60 Hz. The maximum operating, transportation, and storage altitude is 5,000 m.
All the power supplies are certified to IEC/EN/ES/CSA 60601-1 and IEC/EN/UL/CSA 60950-1 with CE marking for the low voltage, EMC and RoHS2 directives. Models have also been evaluated for Class 2 limits in accordance with UL 1310 and the household and similar electrical appliances standard IEC 60335-1. The series is compliant to EN 55011-B and EN 55032-B (radiated and conducted) and meet the EN 61000-3-2 harmonics, IEC 60601-1-2 Edition 4, and IEC 61000-4 immunity standards.