Miller Maxstar 400 Owner's Manual page 46

B. Connecting Single-Phase Input Power
8
4
Tools Needed:
5/16 in.
! Installation must meet all National and
Local Codes − have only qualified per-
sons make this installation.
! Disconnect and lockout/tagout input
power before connecting input con-
ductors from unit. Follow established
procedures regarding the installation.
! Make input power connections to the
welding power source first.
! Always connect green or green/yellow
conductor to supply grounding termi-
nal first, and never to a line terminal.
See rating label on unit and check input volt-
age available at site.
1 Input Power Conductors (Customer
Supplied Cord)
Select size and length of conductors using
Section 5-14. Conductors must comply with
national, state, and local electrical codes. If
applicable, use lugs of proper amperage
capacity and correct hole size.
.
A complete Parts List is available at www.MillerWelds.com
1
=GND/PE Earth Ground
10
7
9
L1
6
L2
1
Welding Power Source Input Power
Connections
2 Strain Relief (Customer Supplied)
Install strain relief of proper size for unit and
conductors. Route conductors (cord) through
strain relief. Tighten strain relief.
3 Machine Grounding Terminal
4 Green Or Green/Yellow Grounding
Conductor
Connect green or green/yellow grounding
conductor to welding power source grounding
terminal first.
5 Welding Power Source Line Terminals
6 Input Conductors L1 And L2
Connect input conductors L1 and L2 to weld-
ing power source line terminals.
Reinstall cover on welding power source.
5
6
4
1
2
3
Disconnect
Connections
7 Disconnect Device (switch shown in
OFF position)
8 Disconnect Device (Supply) Grounding
Terminal
Connect green or green/yellow grounding
conductor to disconnect device grounding ter-
minal first.
9 Disconnect Device Line Terminals
Connect input conductors L1 and L2 to
disconnect device line terminals.
10 Overcurrent Protection
Select type and size of overcurrent protection
using Section 5-14 (fused disconnect switch
shown).
Close and secure door on line disconnect de-
vice. Follow established lockout/tagout pro-
cedures to put unit in service.
Input9 2013−04 / Ref. 805604-A
Device Input Power
OM-275857 Page 37