Miller Electric 456 CC manual Connecting Input Power, Input Filter Board, L21 Tools Needed

4-12. Connecting Input Power

Input Filter

Board

L1

L2

=GND/PE

! Always connect grounding conductor first.

L3

2

L1

L21

L3

Tools Needed:

5/16 in

ssb2.4* 1/94 − 801 523-B / 801 946

! Turn Off welding power source, and check voltage on input capacitors according to Section 6-3before pro- ceeding.

Check input voltage available at site. Remove left side panel.

1Input And Grounding Conductors See Section 4-11.

Install ring terminals of proper size onto input conductors for connection to input filter board terminals (see illustration).

2 Line Disconnect Device

Select type and size of overcurrent protection using Section 4-11. Connect input and grounding conductors to a deenergized line disconnect device.

Reinstall left side panel.

OM-203 034 Page 20