UG:108
vicorpower.com
Applications Engineering: 800 927.9474
Page 2
Standard Features
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Input: 3Æ 208/240 Vac Wye or Delta, 1Æ 180-264 (47-500Hz) or 260–352 Vdc
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Power Output:
3 Phase MegaPAC: 2,000 W with 3Æ input; 1,200 W with 1Æ input
4kW MegaPAC: 4,000 W with 3Æ input; 1,500 W with 1Æ input
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10 slots (upto 20 outputs)
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Fan cooled (4kW MegaPAC-EL has 2 fans)
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Full power to 45°C; half power to 65°C
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Power Factor Correction - passive - to 0.92 PF (3Æ input)
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Conducted EMI meets EN 55022 Level A
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AC Power OK and AC Power Fail status signals
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Output Sequencing and General Shutdown
(Consult Applications Engineering for automatic sequencing circuitry.)
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Auto Sense capability Refer to page 12 and page 16 for more information on Autosense
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Overcurrent protection on all outputs
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Overtemperature limiting (not applicable with VI-J00)
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Overvoltage protection (not applicable with VI-J00 modules)
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Size: 3 Phase MegaPAC - EL: 4.9"H x 7.5"W x 15.2"L
(124,5mm x 190,5mm x 429,3mm) Extended chassis
Size: 4kW MegaPAC - EL: 4.9"H x 7.5"W x 16.9"L
(124,5mm x 190,5mm x 386,1mm) Extended chassis
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Safety Agency Approvals: cURus, cTUVus, CE Mark
Optional Features
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DC OK status signal
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Output voltage adjustment range with built-in potentiometer
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Reversed fan airflow direction
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Current Share Boards - see page 25
Mechanical Considerations
The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL can be mounted on any of four
surfaces using standard 8-32 or 4mm screws. The chassis comes with four mounting
points on each surface; maximum allowable torque is 20 lb-in. The maximum
penetration is 0.15 in. (3,8mm).
When selecting a mounting location and orientation, the unit should be positioned so
air flow is not restricted. Maintain a 2" minimum clearance at both ends of the 3 Phase
MegaPAC - EL and 4kW MegaPAC - EL and route all cables so airflow is not obstructed.
The standard unit draws air in at the fan side/AC input side and exhausts air out the load
side. If airflow ducting is used, use caution, as sharp turns could present back pressure
to the 3 Phase MegaPAC - EL and 4kW MegaPAC - EL. For the 4kW MegaPAC - EL, the
fans move approximately 50 CFM of air while for the 3 Phase MegaPAC -EL, the fan
moves approximately 30 CFM of air. The 4kW MegaPAC - EL has a second fan for
additional cooling.
Avoid excessive bending of output power cables after they are connected to the 3
Phase MegaPAC - EL or the 4kW MegaPAC - EL. For high-current outputs, use cable
ties to support heavy cables in order to minimize mechanical stress on output studs.
Be careful not to short-out to neighboring output studs. The 3 Phase MegaPAC - EL and
