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Quick install, Instructions – Vicor 4kW MegaPAC AC-DC Switchers User Manual

Page 12

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UG:107

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Page 12

3 Phase and 4kW MegaPACs
“Quick Install” Instructions

(For Mechanical Drawing, see pages 15)

Mounting the 3 Phase MegaPAC and 4kW MegaPAC

n

The 3 Phase MegaPAC and 4kW MegaPAC 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.

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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:

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The upper stud is Positive and the lower stud is the Return.

n

Remove outer nut. Do not remove or loosen inner nut.

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Place ring lug over output stud.

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Replace and tighten outer nut to a maximum torque of 45 lb-in. Do Not

Over-Tighten Nuts.

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Verify all output nuts are properly installed before turning on supply.

Installing power connectors on DualPACs (J1A and J1B):

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Use Molex mating receptacle #39-01-2060 with #39-00-0039 terminals

provided.

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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.

J2-PIN1

J3-PIN1

0UTPUT ADJUST

+ V0UT

- VOUT

MODUPAC

6 -REMOTE SENSE

3 +REMOTE SENSE

2 & 5 -V OUT

1 & 4 +V OUT

PIN

J1B

+

4

6

-

5

+

+RS -

-RS

3

2

1

J1A

3

2

1

4

6

+RS

-RS

+

+

-

5

-

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

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