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250/350-W range of AC-DC power supplies in compact footprint

250/350-W range of AC-DC power supplies in compact footprint

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By eeNews Europe



Both the EMH250 250 W and the EMH350 350 W series have an extra wide input range of 80-275 VAC and are available in four output models covering the nominal voltages of +12, +18, +24 or +48 VDC. A trim function allows adjustment of the output voltage to within ±10% of stated nominal. A +12 VDC / 0.6 A fan supply is also provided across the range. In addition, the EMH350 series includes a +5 VDC / 2.0 A standby supply. Unlike many competitor models, full power is available from low input voltages of 90 VAC and the unit does not derate until +50 °C operating temperature.

Measuring just 76.2 127 x 36.3 mm (3 x 5 x 1.43 inches), these industry standard format units require only 12 CFM of forced airflow in order to deliver the full output power. An optional top mounted fan is available across the range, and the EMH350 has the additional option of a variable speed fan that is dependent on the unit’s operating temperature.

The EMH350 series is also available with an optional ORing diode circuit that allows for current sharing in N+1 redundancy configurations. This series provides customers with the choice of either analogue or digital control options. The analogue signals provide Power Fail, Inhibit and Current Share. Digital signals and controls are accessible using PMBus compatible commands.

The EMH series is available from Farnell, element14, approved regional distributors, or direct from XP Power and come with a three year warranty.
                                                                               
Visit XP Power at www.xppower.com.

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