UG:108
vicorpower.com
Applications Engineering: 800 927.9474
Page 1
3 Phase MegaPAC-EL
TM
(Low Noise)
4kW MegaPAC-EL
TM
(Low Noise)
AC-DC Switchers
USER GUIDE | UG:108
September 2013
Overview
The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL are field-configurable, single or
multiple output switchers, providing up to 2,000 W (3 Phase MegaPAC/EL- Low Noise)
to 4,000 W of output power (4kW MegaPAC/EL-Low Noise). The chassis has 10 slots
and provides up to 20 regulated, fully isolated outputs. It achieves power densities of
3.6 W per cubic inch (3 Phase MegaPAC/EL (Low Noise)) to 6.4 W per cubic inch (4kW
MegaPAC/EL (Low Noise). The dimensions for the 3 Phase MegaPAC/EL (Low Noise)
are 4.9"H x 7.5"W x 15.2"L (124,5mm x 190,5mm x 429,3mm) and the dimensions for
the 4kW MegaPAC/EL (Low Noise) are 4.9"H x 7.5"W x 16.9"L (124,5mm x 190,5mm x
386,1mm). The 4kW MegaPAC/EL (Low Noise) is longer than the 3 Phase MegaPAC/EL
(Low Noise) to accommodate a 2nd fan.
A complete power supply is configured 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 MaxiVicor DC to DC converters and are available in
a wide selection of output voltage 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 all ConverterPACs, refer to
the ConverterPAC information sheets. The 4kW MegaPAC-EL (Low Noise) uses VI-200/
VI-J00 and Maxi Vicor DC to DC converters while the 3 Phase MegaPAC-EL (Low Noise)
uses VI-200/VI-J00 Vicor DC to DC converters.
Manufactured at Westcor, a division of 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 another Extended Length
ConverterPAC that 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
400 V). 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.
Contents Page
Overview 1
of Product
Mechanical 2
Considerations
MegaPACs
ConverterPAC 6
Description
Instructions
Mechanical Drawings
S
NRTL
C
US
C
US
®
3 Phase MegaPAC
4kW MegaPAC
