Compact AC/DC supplies have industrial and medical safety certifications

24th January 2019
Source: TDK-Lambda
Posted By : Caroline Hayes
Compact AC/DC supplies have industrial and medical safety certifications

 

AC/DC power supplies from TDK-Lambda are certified to the IEC 60601-1 medical safety standard as well as IEC 62368-1.  The GXE600 series of 600W convection-cooled supplies can be digitally programmed using an RS-485 interface (Modbus RTU protocol) or with a 0 to 6V external voltage

The 1U high supplies can be used in medical, industrial and test equipment requiring quiet operation, fan-less cooling and constant voltage, constant current programmability.

The power supplies can be operated as a 24 or 48V fixed output supply, or programmed to be provide a constant voltage, constant current (CVCC) source.  The voltage adjustment range is from 20 to 120% and the current from 20 to 100%.  Protection and recovery parameters as well as rise time slew rate, can be set. The digital communications interface can indicate the estimated remaining electrolytic capacitor lifetime, operating runtime and alarm history to prompt remote maintenance or for fault finding.

Operating from 85 to 265V AC input, the earth leakage current is less than 300µA. Dual input fuses are standard.  Operating temperature is -20 to +70°C (-40°C start up), derating linearly above 50°C to 50% load at 70°C.  Derating or external cooling is required below 170Vac input. 

Other features are an isolated 5V 1A standby voltage, remote on/off, ‘DC good’ and ‘AC fail’ isolated signals, with paralleling capability for up to five units. The case measures 127 x 41 x 254mm and the supplies carry a seven-year warranty.

The supplies are certified to IEC/EN/ES/CSA 60601-1, IEC/EN/US/CSA 62368-1, IEC/EN/US/CSA 60950-1, EN 62477-1 (OVC III), with CE marking for the Low Voltage, EMC and RoHS2 Directives.  Input to output isolation is 4,000Vac (2 x MoPP), input to ground 2,000Vac (1 x MoPP) and 1,500Vac output to ground (1 x MoPP) for suitability with B and BF rated equipment.  They also comply with EN 55011-B,  EN 55032-B, FCC Class B, VCCI-B conducted and radiated emissions, meet the EN 61000-3-2 harmonics and EN 60601-1-2 (Edition 4) immunity standards.

 

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