Tweco 500SP PowerMaster Automation User Manual
Page 27
POWERMASTER 400SP, 500SP AUTOMATION
March 16, 2007
3-3
3.05 Connecting 3-Phase Input Power to 400SP or 500SP
!
WARNINGS
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)
V
208
230
400
460
208
230
400
460
Max Recommended Circuit Breaker or Time-Delay Fuse
A
45
40
25
20
70
60
35
30
Max Recommended Standard Normal Operating Fuse
A
55
50
30
25
80
70
40
35
Min Input Conductor Size
AWG
8
8
12
14
4
6
10
10
Min Input Conductor Size
AWG
8
8
12
14
6
8
10
10
Suggested Input Cord Type
Carolprene® Jacketed Type SOOW
90°C 600 Volt UL/CSA Portable Cord
Three-Phase
Three-Phase
400SP
500SP
Art: A-07877
Primary Power Cable
(customer supplied)
Line Fuse
Line
Disconnect
Switch
Ground
Conductor
Ground
Terminal
GND/PE