350W medical PSU peaks at 1kW

Author: EIS Release Date: Jun 29, 2021

TDK-Lambda has introduced a series of ac-dc mains power supplies rated at 350W convection, 500W with forced air and 1kW peak.

 

TDK CUS350MP medical psu

Called CUS350MP, the PSUs have medical and industrial safety certifications.

 

Input can vary across 85 to 265Vac (with leakage current <300µA).

 

Four output voltages are available: 24, 30, 36 and 48V, plus a 5V 300mA isolated stand-by voltage – remote on/off is also fitted as standard.

 

Typical full load efficiency is 94% with a 230Vac input.

 

Operating ambient is -20 to +70°C, derating linearly above 50°C to 30% load.

 

Input to output isolation is 4kVac (2 x MoPP), input to ground 1,5kVac (1 x MoPP) and 1,5kVac (1 x MoPP) output to ground for suitability in B and BF rated medical equipment.

 

Safety certifications include IEC/UL/CSA/EN 62368-1, IEC/EN/ES 60601-1, EN 62477-1 (OVC III), with CE marking to the Low Voltage, EMC and RoHS Directives.

 

The units also comply with EN 55011-B and EN 55032-B conducted and radiated emissions, meet the EN 61000-3-2 harmonics, IEC60601-1-2 Edition 4 and IEC 61000-4 immunity standards.

 

Including the baseplate, the open frame models measure 88 x 183 x 44mm and weigh 770g.

 

A cover, screw terminal connections, double-sided board coating and a single AC fuse are available as options.

 

Applications are foreseen where occasional high peak power demands are experienced, for example medical equipment with DC motors and industrial printers.