9. connecting 3-phase input power – Miller Electric XMT 400 User Manual

Page 23

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OM-217 769 Page 19

4-9. Connecting 3-Phase Input Power

ST-144 221 / ST-801 192 / 803 766-A

!

Installation must meet all National

and Local Codes − have only quali-

fied persons make this installation.

!

Disconnect and lockout/tagout in-

put power before connecting input

conductors from unit.

!

Always connect green or green/

yellow conductor to supply

grounding terminal first, and never

to a line terminal.

For Three-Phase Operation
1

Input Power Cord.

2

Disconnect Device (switch shown in

the OFF position)

3

Green Or Green/Yellow Grounding

Conductor

4

Disconnect Device Grounding

Terminal

5

Input Conductors (L1, L2 And L3)

6

Disconnect Device Line Terminals

Connect green or green/yellow grounding

conductor to disconnect device grounding

terminal first.
Connect input conductors L1, L2, and L3

to disconnect device line terminals.
7

Over-Current Protection

Select type and size of over-current

protection using Section 4-8 (fused dis-

connect switch shown).
Close and secure door on disconnect

device. Remove lockout/tagout device,

and place switch in the On position.

= GND/PE Earth Ground

L1

2

1

L2
L3

3

3

4

5

6

7

Tools Needed:

1

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