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3-1. Specifications
Rated
Amp
Welding
Range
Output
Model
A (Low)
300 A @ 32
30 – 225
300
Volts DC,
Amp
60% Duty
B (High)
Cycle
40 – 375
A (Low)
30 – 280
400 A @ 36
Volts DC, 50
(45 – 250)
400
Or 60 Hz,
Amp
B (High)
60% Duty
Cycle
50 – 500
(60 – 500)
*While idling
( ) Indicates specification differences for CE models
3-2. Duty Cycle And Overheating
Overheating
OM-2230 Page 12
SECTION 3 – INSTALLATION
Max
IP
OCV DC
Rating
DC
75
21M
75
21M
60% Duty Cycle At 300 Amperes For 300 Ampere Models
60% Duty Cycle At 400 Amperes For 400 Ampere Models
6 Minutes Welding
0
Minutes
Amperes Input at Rated Load Output, 50 or 60 Hz,
Three-Phase
208 V
220 V
230 V
380 V
64
58
––
––
4.8*
4.3*
89
84
80
48
5.8*
5.5*
5.3*
3.2*
400 Amp
300 Amp
4 Minutes Resting
15
Reduce Duty Cycle
440 V
460 V
575 V
29
––
––
2.2*
42
40
32
2.7*
2.6*
2.1*
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
Y Exceeding duty cycle can
damage
unit
warranty.
V
OR
duty1 4/95 / SA-144 523
KVA
KW
23.1
15
1.7*
0.8*
31.9
19.6
(32)
(19.4)
2.1*
0.8*
and
void
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