Weld Output Terminals And Selecting Cable Sizes; Electrical Service Guide - Miller AC 251 Stick Owner's Manual

2-5. Weld Output Terminals And Selecting Cable Sizes

Turn Off power before
connecting to weld output
receptacles.
Ground
Electrode
2
Weld cable size (mm ) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.

2-6. Electrical Service Guide

Input Voltage
Input Amperes At Rated Output
Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes
Reference: 1997 National Electrical Code (NEC)
Total Cable (Copper) Length In Weld Circuit Not Exceeding
100 ft (30 m) Or Less
10 – 60%
Welding 60 – 100%
Duty
Amperes Duty Cycle
Cycle
100 20
150 25
200 25
250 35
150 ft 200 ft
(45 m) (60 m)
20 20 25
25 35 50
35 50 50
35 50 70
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 – 100% Duty Cycle
35 50 50
50 70 90
70 90 90
90 90 120
230
43
40
OM-194 414 Page 5
400 ft
(120 m)
50
90
90
120
Ref. S-0007-D
400
25
30
S-0092-J