comment on this article

Medical power supplies meet curve B radiated and conducted EMI

TDK-Lambda has unveiled the CUS30M and CUS60M series of AC-DC power supplies. Rated at 30W and 60W, these compact products have been designed to meet curve B conducted and radiated EMI in either a Class I or Class II (double insulated) construction, without the need for external filtering.

This additional flexibility will allow the CUS30/60M to be used in a wide range of applications, including home healthcare, medical, dental, test and measurement, broadcast and industrial equipment.

Both models are packaged in the standard 50.8 x 76.2mm (2” x 3”) footprint, with the CUS30M having a height of 24.2mm and the CUS60M a height of 26.7mm. Both can operate from a wide range 85 to 265Vac input and feature operating efficiencies of up to 90%.No load power consumption for the 30W is <300mW and <500mW for the 60W.The CUS30/60M can operate at full load, convection cooled, in ambient temperatures from -20 to 70°C (start up at -30°C), derating to 50% load at 70°C.

The series has an input to output isolation of 4,000Vac (2 x MoPP), an input to ground isolation of 2,000Vac (1 x MoPP) and an output to ground isolation of 1,500Vac (1 x MoPP) for suitability in B / BF rated equipment.Touch current for the 30W is a maximum of 100µA and 60µA for the 60W, with leakage current less than 250µA and 200µA respectively at 265Vac 60Hz.The maximum operating, transportation and storage altitude is 5,000m.

The CUS30/60M series is safety certified to IEC/EN/ES 60601-1 and IEC/EN/UL 60950-1, with CE marking for the Low Voltage and RoHS2 Directives.The units also comply with EN 55011-B and EN 55032-B conducted and radiated emissions (Class I and II), and meet the EN 61000-3-2 harmonics, IEC 60601-1-2 Edition 4 and IEC 61000-4 immunity standards.

Author
Neil Tyler

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Beyond the threshold

Given the massive spikes in power consumption incurred by microprocessors and ...

Get to market faster

A quick look at using Vicor's PFM and AIM in VIA packaging for your AC to Point ...

Finding its voice

The National Physical Laboratory (NPL) is the UK’s National Measurement ...

Battery technology

The move to battery powered vehicles is gathering speed. The UK has joined ...

Hitting maturity?

From curved TVs to pop-up presentation screens a new wave of products are ...