XP Power launches 250/350 W range of AC-DC supplies in ultra compact 3 x 5 inch footprint

XP Power today announced the EMH250 and EMH350 series of highly  efficient single output 250 Watt and 350 Watt AC-DC power supplies.  Meeting the IT equipment safety specifications of UL/TUV/EN 60950-1 and  the stringent medical safety standards of UL/TUV/EN 60601-1 the EMH  series suit a broad range of information technology, industrial, medical  equipment and surgical life support applications. All models are also  BF rated.

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 degrees  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, Newark and element14 approved  regional distributors, or direct from XP Power and come with a 3 year  warranty.