Connecting Optional Three-Phase Generator - Miller Big Blue 401DX Owner's Manual

7-3. Connecting Optional Three-Phase Generator

10
9
93
91
90
92
OM-130 098 Page 28
F3
F2
F1
8 7 6
Single
AC
Phase
Output
1
Volts 120/240
Amps 31
KVA/KW 7.5
Frequency 60 Hz
Engine Speed 1850 RPM
Max. Fuse Size 35 Amperes
Lead 42 connects to GROUND stud on front of
unit.
Jumper 42 is connected to 90 at factory.
!
Stop engine.
!
Power and weld outputs are
live
Disconnect
unused cables.
.
Have qualified person install
according to circuit diagram
and Generator Power Guide-
lines (Section 11).
Remove junction box cover.
1 Lead 93
2 Lead 92
3 Lead 91
4 Lead 90 (Neutral)
5 Lead 42 (Circuit Grounding
Lead)
11
Lead 42 connects to front panel
Ground stud.
6 Grounding Terminal
7 Jumper Lead 42
8 Isolated Neutral Terminal
Jumper 42 is connected to lead 90
1
at factory. Jumper 42 may be dis-
connected from neutral to meet
2 applicable electrical codes.
9 User Supplied Leads
3
10 Load Terminals
Connect leads to terminals.
11 Fuses F1, F2, And F3
4
F1, F2, and F3 protect each load line
from overload.
.
Set Engine Control switch to
Run when using generator
power.
5
Three
Phase
3
240
24
10
at the same time.
or insulate
Tools Needed:
Ref. S-188 059-A