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3-7. Electrical Service Guide
Input Voltage
Input Amperes At Rated Output
Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes
Min Input Conductor Size In AWG/Kcmil
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG/Kcmil
Reference: 1993 National Electrical Code (NEC).
3-8. Connecting Input Power
Tools Needed:
5/16 in
Y Turn Off welding power source, and
check voltage on input capacitors ac-
cording to
Section
proceeding.
Check input voltage available at site.
Remove left side panel.
=GND/PE
Y Always connect
grounding conductor
first.
2
L1
L2
L3
1
Input And Grounding Conductors
See Section 3-7.
5-3
before
Install ring terminals of proper size onto input
conductors for connection to input filter
board terminals (see illustration).
2
Line Disconnect Device
L2
1
Select type and size of overcurrent protec-
tion using Section 3-7. Connect input and
grounding conductors to a deenergized line
disconnect device.
Reinstall left side panel.
Three-Phase
264 (80)
Input Filter
Board
L1
L3
ssb2.4* 1/94 – ST-801 718 / ST-801 946
OM-196 188 Page 15
400
31
45
10
10
S-0092J
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Troubleshooting
