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XP Power launches 500W class II power supplies for medical devices

XP Power has announced a range of 500W AC-DC power supplies that provide class II safety certification, including BF class insulation, for medical device applications requiring class II (without earth) installation and EMC performance.

The PBL500 series offers power levels up to 500W forced cooled or when fitted with an integral fan and 250W convection cooled. The series accepts a wide, universal input of 80VAC – 264VAC at 47Hz to 63Hz and offers single output voltages from 12V to 57V. With the same series system designers can cover many applications.

The series is available in two mechanical formats. The U-channel units provide 250W when convection cooled and 450 – 500W with external forced air cooling. The top fan cover version, including a variable speed integral cooling fan for low audible noise, provides a complete 450 – 500W solution.

The product has a low patient leakage current and provides 2 x MOPP from input to case, 2 x MOPP from input to output and 1 x MOPP from output to ground. Input to case and input to output isolation is rated at 4000VAC and output to ground is 1500VAC. Both conducted and radiated emissions are class B, and the series is compliant with IEC/ES/EN 60601-1 edition 3.1 and 60601-1-2 edition 4

The PBL500 series includes a 5V standby supply, overvoltage & overcurrent protection, remote sense, and thermal shutdown. Also available is an ‘AC OK’ signal and remote on/off control. The U channel version also provides a 12V 0.3A output suitable for powering system cooling fans.

Neil Tyler

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