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4-5. Positioning Jumper Links
4-6. Electrical Service Guide
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda-
tions are for a dedicated circuit sized for the rated output and duty cycle of the welding power source.
In dedicated circuit installations, the National Electrical Code (NEC) allows the receptacle or conductor rating to be less than the rating
of the circuit protection device. All components of the circuit must be physically compatible. See NEC articles 210.21, 630.11, and
630.12.
Input Voltage (V)
Input Amperes (A) At Rated Output
Max Recommended Standard Fuse Rating In
1
Amperes
2
Time-Delay Fuses
3
Normal Operating Fuses
Min Input Conductor Size In AWG
Max Recommended Input Conductor Length
In Feet (Meters)
Min Grounding Conductor Size In AWG
** 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: 2014 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" . See UL 248.
3 "Normal Operating" (general purpose - no intentional delay) fuses are UL class "K5" (up to and including 60 amps), and UL class "H" ( 65 amps 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
310.15(B)(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.
Reference: 2008 National Electrical Code (NEC) (including article 630)
230/400 Volt Models
230 V
380/520 Volt Models
380 V
253
230
400
230
36
21
45
25
50
30
4
10
14
106
127
107
(32)
(39)
(33)
4
10
14
400 V
520 V
343
380
400
520
230
55
32
32
23
73
60
40
30
80
40
50
80
48
35
110
8
10
12
12
8
193
130
220
84
(59)
(40)
(67)
(25)
8
10
12
12
8
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.
Ref. S9215023 / Ref S9215018
403
443
400
230
380
400
42
80
47
47
50
100
50
60
60
125
70
70
10
6
8
10
168
114
202
148
(51)
(35)
(61)
(45)
10
6
8
10
OM-233 381 Page 13
520
36
40
50
10
251
(76)
10
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