Connecting Single-Phase Input Power To 320Sp Or 400Sp Or 500Sp - Thermal Arc POWERMASTER 320SP Service Manual

3.06 Connecting Single-Phase Input Power to 320SP or 400SP or 500SP

Installation must meet all National and Local Codes - have only qualified persons make this instal-
lation.
Disconnect and lockout/tagout input power before connecting input conductors from unit.
Always connect green or green/yellow conductor to supply grounding terminal first, and never to a
line terminal.
Make input power connections to the welding power source first.
Input Mains Voltage (50/60 Hz)
Max Recommended Circuit Breaker or Time-Delay Fuse
Max Recommended Standard Normal Operating Fuse
Min Input Conductor Size
Min Input Conductor Size
Suggested Input Cord Type
Input Mains Voltage (50/60 Hz)
Max Recommended Circuit Breaker or Time-Delay Fuse
Max Recommended Standard Normal Operating Fuse
Min Input Conductor Size
Min Input Conductor Size
Suggested Input Cord Type
Ground
Terminal
Art: A-07859
March 3, 2008
POWERMASTER 320SP, 400SP, 500SP
!
WARNINGS
V 208
A 100
A 110
AWG 4
AWG 6
GND/PE
Ground
Conductor
Line
Disconnect
Switch
Line Fuse
Primary Power Cable
Single-Phase
320SP
V 208 230 400
A 70 60 40
A 90 70 45
AWG 6 6 10
AWG 8 8 10
Carolprene® Jacketed Type
SOOW 90°C 600 Volt
UL/CSA Portable Cord
Single-Phase
400SP
230 400 460 208
90 50 45 100
100 60 55 110
4 8 10 4
6 8 10 6
Carolprene® Jacketed Type SOOW 90°C 600 Volt
UL/CSA Portable Cord
460
35
40
12
12
Single-Phase
500SP
230 400 460
90 50 45
100 60 55
4 8 10
6 8 10
3-5