OM-233 381 Page 13
3-8.
Positioning Jumper Links
Check input voltage available at
site.
1
Jumper Links Access
Remove side panel.
2
Jumper Link Label
Check label − only one is on unit.
3
Input Voltage Jumper Links
Move jumper links to match input
voltage.
Close and secure side panel.
230/400 Volt Models
380 V
520 V
230 V
400 V
380/520 Volt Models
Ref. S9215023 / Ref S9215018
3-9.
Electrical Service Guide
Failure to follow these fuse and circuit breaker recommendations could create an electric shock or fire hazard. These
recommendations are for a dedicated branch circuit that applies to the rated output and duty cycle of the welding power source.
253
343
403
443
Input Voltage
230
400
230
380
400
520
230
400
230
380
400
520
Input Amperes At Rated Output
36
21
55
32
32
23
73
42
80
47
47
36
Max Recommended Standard Fuse Rating In
Amperes
1
Time-Delay
2
45
25
60
40
40
30
80
50
100
60
50
40
Normal Operating
3
50
30
80
40
50
48
35
110
60
125
60
70
70
50
Min Input Conductor Size In AWG
4
10
14
8
10
12
12
8
10
6
8
10
10
Max Recommended Input Conductor Length
In Feet (Meters)
106
(32)
127
(39)
107
(33)
193
(59)
130
(40)
220
(67)
84
(25)
168
(51)
114
(35)
202
(61)
148
(45)
251
(76)
Min Grounding Conductor Size In AWG
4
10
14
8
10
12
12
8
10
6
8
10
10
** Power cord supplied with the unit is sized for 230V operation. Larger power cord may be required for cable lengths greater than 3 meters. C
onsult national and local regulations.
Reference: 2005 National Electrical Code (NEC) (including article 630)
1 If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.
2 “Time-Delay” fuses are UL class “RK5” .
3 “Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and
above).
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table
310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.
