Miller SRH-444 Mode D'emploi page 23

B. Connecting 3-Phase Input Power For Models With Customer Supplied Cord
8
4
6
.
= GND/PE
Earth Ground
3
4
Tools Needed:
3/8, 7/16, 1/2 in
= GND/PE Earth Ground
7
10
9
2
1
Tighten nuts to 65 in lb +/- 5 in lb.
L1
L2 L3
(U) (V) (W)
5
6
Y Installation must meet all National
and Local Codes − have only quali-
fied persons make this installation.
Y Disconnect and lockout/tagout in-
put power before connecting input
conductors from unit.
Y Make input power connections to
the welding power source first.
Y Always connect green or green/
yellow conductor to
grounding terminal first, and never
to a line terminal.
See rating label on unit and check input
voltage available at site.
1 Input Power Conductors (Customer
Supplied Cord)
Select size and length of conductors using
Section 4-12. Conductors must comply
with national, state, and local electrical
codes. If applicable, use lugs of proper
amperage capacity and correct hole size.
Welding Power Source Input Power
Connections
2 Strain Relief
Route conductors (cord) through strain re-
lief and tighten screws.
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 (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
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
terminal first.
9 Disconnect Device Line Terminals
Connect input conductors L1 (U), L2 (V)
And L3 (W) to disconnect device line
terminals.
10 Overcurrent Protection
Select type and size of overcurrent protec-
tion using Section 4-12 (fused disconnect
switch shown).
Close and secure door on line disconnect
device. Remove lockout/tagout device,
and place switch in the On position.
800 103-C / Ref. 801 116-A
OM-2230 Page 19
supply
Power