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Specifications (cont.), Output studs – Vicor PFC MegaPAC-HPEL Power Factor Corrected AC-DC Switchers User Manual

Page 23

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UG:119

vicorpower.com

Applications Engineering: 800 927.9474

Page 23

Specifications (Cont.)

Environmental Characteristics

Storage Temperature

-40°C to 85°C

Altitude

Derate 2.6% total output power for each 1,000 ft to a maximum operating
altitude of 15,000 ft. Non-operating storage maximum altitude is 40 K.

Operating Temperature*

-20°C to 40°C full power; -20°C to 60°C half power

Humidity

0 to 95% non-condensing

Safety Agency Approvals

cURus – UL 60950-1, CSA 60950-1
cTUVus – EN 60950-1, UL 60950-1, CSA 60950-1
CE Mark – Low Voltage Directive, 73/23/EEC amended by 93/68/EEC

Product Weights
(fully configured)

PFC MegaPAC-EL

PFC MegaPAC-HPEL

12.8 lbs (5,8 kgs)

13.1 lbs (6 kgs)

Warranty

2 years limited warranty.
See

www.vicorpower.com

for complete warranty statement.

See Vicor module specifications. A preload may be necessary for modules trimmed down below 90%
of normal output voltage.

*The maximum operating temperature is 40°C. If using a VI-200 with output voltage less than 12 V
and more than 150 Watts, the operating temperature decreases to 35°C. This also applies when using
a FinQPAC with output voltage less than 24 V and more than 500 Watts

.

Output Studs

New, more robust output studs (with a 3:1 safety margin @ 45 lbs. in.) were installed in
ConverterPACs, the slide-in assemblies used in the MegaPAC Family. These new outputs
studs are 1/8" longer to allow for multiple lugs. They are fully compatible with the
original flanged nut ConverterPACs for use in parallel arrays.
Other advantages include:

n

Inner nut (that might become loose) replaced by a brass insert

n

Stronger connection to the PCB

n

Improved conductivity (less voltage drop and heating)

n

Both the stud and panel are less likely to break due to over torqueing

Shown below are the original and redesigned studs.

Refer to page 14 for dimensional data.

Original

Redesigned

This manual is related to the following products: