UG:107
Page 1
Overview
The 3-Phase MegaPAC and 4kW MegaPAC are field configurable, single- or multiple-output switchers
providing up to 2,000W (3-Phase MegaPAC) to 4,000W (4kW MegaPAC) of output power. The chassis
has ten slots and can provide up to 40 regulated, fully-isolated outputs. It achieves power densities
of 4.4W per cubic inch (3-Phase MegaPAC) to 7.8W (4kW MegaPAC) per cubic inch. The dimensions
of the 3-Phase MegaPAC are 4.9 x 7.5 x 12.3in [124,5 x 190,5 x 312,4mm] and the dimensions of the
4kW MegaPAC are 4.9 x 7.5 x 14in [124,5 x 190,5 x 355,6mm]. The 4kW MegaPAC is longer than the
3-Phase MegaPAC to accommodate a second fan.
A complete power supply is configured at the factory by selecting and inserting up to ten same-length
slide-in output assemblies called ConverterPACs™. ConverterPACs incorporate one or two
VI-200™ / VI-J00™ and / or Maxi Vicor DC-DC converters and are available in a wide selection of
outputs and power levels. The net result is a power supply that offers the advantages of a custom
supply, but is assembled from standard and modular building blocks. For detailed information about
ConverterPACS, refer to the ConverterPAC information sheet. The 4kW MegaPAC uses VI-200 /
VI-J00 and Maxi Vicor DC-DC converters while the 3-Phase MegaPAC uses VI-200 / VI-J00 Vicor
DC-DC converters.
Manufactured at Vicor, the entire family of MegaPAC power supplies is completely user-configurable.
If output requirements change, i.e., more power or a different output voltage is needed, upgrading is
easy: simply unlock a single screw and replace the slide-in ConverterPAC with one of the same length
and has the desired voltage power rating. For additional flexibility, same-length ConverterPACs can
be connected in parallel to increase output power (booster ConverterPACs), or in series for higher
voltages (total output voltage should not exceed 400V). The driver is to the left of the boosters
when looking at the output end of the supply. A user-friendly interface provides control and output
sequencing capability, in addition to useful status indicators. Please consult our Applications Engineering
Department if you have other special requirements.
3-Phase MegaPAC
4kW MegaPAC
and Connector Pin
Identification for the 3-Phase /
4kW MegaPACs
3-Phase and 4kW MegaPACs Quick
3-Phase MegaPAC™ and
4kW MegaPAC™ AC-DC Switchers
USER GUIDE | UG:107
Contents Page
Note:
This user guide contains references to parts and products that are no longer available for new designs.
They remain included for reference only.
