4-5. Connecting 3-Phase Input Power For 460/575 Volt Models
! Installation must meet all National and Local Codes − have only quali- fied persons make this installation.
GND/PE Earth Ground
! Disconnect and lockout/tagout in- put power before connecting input conductors from unit.
3
8
!Make input power connections to the welding power source first.
!Always connect green or green/ yellow conductor to supply grounding terminal first, and never to a line terminal.
7. The circuitry in this unit automatically
adapts the power source to the primary voltage being applied. Check input voltage available at site. This unit can be connected to either 460 or 575 VAC input power.
10 See rating label on unit and check input 
voltage available at site.
4
6
1
2
5 | 6 |
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3 | 4 | |
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91 Input Power Conductors (Customer Supplied Cord)
Select size and length of conductors using Section
Welding Power Source Input Power Connections
2 Strain Relief
Route conductors (cord) through strain re- lief and tighten screws.
3Machine Grounding Terminal
4Green Or Green/Yellow Grounding Conductor
Connect green or green/yellow grounding conductor to welding power source grounding terminal first.
5Welding Power Source Line Terminals
6Input Conductors L1 (U), L2 (V) And L3 (W)
Connect input conductors L1 (U), L2 (V) and L3 (W) to welding power source line terminals.
Close and secure access door on welding power source.
Disconnect Device Input Power Connections
7Disconnect Device (switch shown in OFF position)
8Disconnect Device (Supply) Grounding Terminal
Connect green or green/yellow grounding conductor to disconnect device grounding terminal first.
9 Disconnect Device Line Terminals
Connect input conductors L1 (U), L2 (V) And L3 (W) to disconnect device line terminals.
Tools Needed:
3/8 in
10
Select type and size of
Close and secure door on line disconnect
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