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April 2009
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XP Power has made additions to its MFA350 AC/DC power supply product line up aimed at industrial applications.
 The 350W compact models, which can be specified with either screw terminals or molex, are fully enclosed and offer two internally mounted fan cooled variants. The top mounted fan model (-TF) measures 172.2 x 84.5 x 50.8mm and has a power density of up to 8W per cubic inch. An end mounted fan unit (-EF) is also available and measures 208.2 x 84.5 x 44.4mm. With the fan being internally mounted on both models, the dimensions quoted indicate the total space required making them suitable for space constrained applications where there is no airflow. In addition, to the fan cooled models, the MFA350 also offers a convection cooled U bracket and hot swappable versions.
According to XP, the MFA350 delivers up to 364W from an input range of 85 to 264VAC and is available in 12, 24 or 48VDC single output versions. A 48VDC input model, DFA350, is also available. An output trim function provides the ability to set the output voltage +/- 10% of the nominal value.
The MFA350 includes a 5V, 0.3A standby supply and offers a signal set including AC fail, DC OK, remote on/off, active current sharing, and remote sense. A 12V, 1A fan supply is also available for the convection cooled units. The units will function at full power from -10 degrees C to +50 degrees C, and will operate at up to +70 degrees C with derating.
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Author
Chris Shaw
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