Vicor 4kW MegaPAC-EL AC-DC Switchers - Manual (Page 11)

UG:108 vicorpower.com Applications Engineering: 800 927.9474 Page 11
3 Phase and 4kW MegaPAC-EL
“Quick Install” Instructions
(For Mechanical Drawing, see page 14 & 15)
Mounting the 3 Phase MegaPAC-EL and/or 4kW MegaPAC-EL
n The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL can be mounted on any
of four sides.
n Use #8-32 or 4mm mounting screws. Maximum penetration should not
exceed 0.15" (3,8mm).
n A minimum of 2" (5,1cm) clearance must be maintained at either end of
the supply in order to insure proper airflow and cooling.
n Maximum allowable torque is 20 lb-in.
Input Connections
Input Power J1
n Input AC power is applied to terminal block J1 using mating receptacle
AMP #54483-4 with #53892-4 crimp or #54329-1 solder terminals provided.
n Use size 12 AWG wire with soldered terminals.
n A fuse or circuit breaker in the input line is required for safety reasons.
Output Connections
Power Connections
Installing ring lugs and/or bus bars on output studs:
n The upper stud is Positive and the lower stud is the Return.
n Remove outer nut. Do not remove or loosen inner nut.
n Place ring lug over output stud.
n Replace and tighten outer nut to a maximum torque of 45 lb-in.
Do Not Over-Tighten Nuts.
n Verify all output nuts are properly installed before turning on supply.
Installing power connectors on DualPACs (J1A and J1B):
n Use Molex mating receptacle #39-01-2060 with #39-00-0039 terminals povided.
n Pins 1 and 4 are Positive, while pins 2 and 5 are the Return.
n Attach terminals to 18-24 AWG stranded wire using Molex tool #11-01-0197.
QPAC (L)
P2-PIN1
OUTPUT ADJUST
- VOUT
+ V0UT
(OUTPUT CONNECTORS)
1 AND 4 +V OUT
3 3 +R/SENSE 6 -R/SENSE
1
2
J1-A
6
5
4
2 AND 5 -V OUT
3 +R/SENSE 6 -R/SENSE 6
5
4
J1-B
2 AND 5 -V OUT
3
2
(OUTPUT CONNECTORS)
1 AND 4 +V OUT 1
Input Panel Connectors
Single Output ModuPAC
DualPAC Output Connector
J1-4 Earth Ground
J1-1 Line 3
J1-2 Line 2
J1-3 Line 1
J1
End of Life - Not Recommended for New Designs