Miller Syncrowave 250 DX Owner's Manual download pdf (Page 38)

OM-359 Page 32

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4-18. Connecting Input Power

Ref. ST-801 973-B

3/8 in

Tools Needed:

GND/PE

Earth Ground

2

1

1

Install conductors into

a deenergized line

disconnect device.

Connect Green Or

Green/Yellow GND/PE

Conductor First

Make connections to machine

first and supply last.

3

4

5

8

3

7

When making connections in

the line disconnect device,

connect the Green Or

Green/Yellow conductor first.

6

Y Disconnect and lockout/tagout in-

put power before connecting input

conductors from unit.

Y Have only qualified persons make

this installation.

See rating label on unit and check input

voltage available at site.

1 Line Disconnect Device

2 Input Conductors

3 Grounding Conductor

Select size and length using Section 4-16.

Conductors must comply with national,

state, and local electrical codes. If applica-

ble, use lugs of proper amperage capacity

and correct hole size.

4 Strain Relief

Route conductors through strain relief.

5 Machine Grounding Terminal

6 Line Terminals

Y Make input power connections to

the welding power source before

making connections into a deener-

gized line disconnect device.

Connect green or green/yellow grounding

conductor to machine grounding terminal

first. Then connect input conductors to line

terminals.

Close access door.

7 Disconnect Device (Supply)

Grounding Terminal

8 Disconnect Device Line Terminals

Y In the deenergized line disconnect

device, connect green or green/yel-

low grounding conductor to supply

grounding terminal first, never to a

line terminal. Be sure grounding

conductor goes to an earth ground.

Connect input conductors to line terminals.

9 Overcurrent Protection

Select type and size using Section 4-16

(fused disconnect switch shown).

Close door on line disconnect device.

9

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