OM-233 381 Page 10
3-3.
Duty Cycle and Overheating
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
% DUTY CYCLE
4.5 Minutes Welding
5.5 Minutes Resting
3.5 Minutes Welding
6.5 Minutes Resting
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
20
25
30
40
50
60 70 80 90 100
35
250
200
150
100
50
Rated Output
300
20
25
30
40
50
60 70 80 90 100
35
700
600
500
400
300
Rated Output
200
600
500
400
300
30
40
50 60 70 80 90100
200
35
25
Rated Output
100
343
Model 443 − 45% Duty Cycle
600
500
400
300
30
40
50 60 70 80 90100
700
35
25
Rated Output
200
443
% DUTY CYCLE
Model 343 − 35% Duty Cycle
Model 253 − 35% Duty Cycle
Model 403 − 35% Duty Cycle
35% Duty Cycle
45% Duty Cycle
% DUTY CYCLE
% DUTY CYCLE
WELDING AMPERES
WELDING AMPERES
WELDING AMPERES
WELDING AMPERES
Содержание Blue Thunder 253
Страница 11: ...OM 233 381 Page 7 2 3 Manufacturer s Rating Label...
Страница 21: ...OM 233 381 Page 17 SECTION 6 ELECTRICAL DIAGRAMS S9215019 Figure 6 1 Circuit Diagram For Blue Thunder 253...
Страница 22: ...OM 233 381 Page 18 S9215018 Figure 6 2 Circuit Diagram For Blue Thunder 343 And 443 Models 380 520 V...
Страница 23: ...OM 233 381 Page 19 S9215023 Figure 6 3 Circuit Diagram For Blue Thunder 343 And 443 Models 230 400 V...
Страница 24: ...OM 233 381 Page 20 S9215020 Figure 6 4 Circuit Diagram For Blue Thunder 403...
Страница 34: ...Notes Work like a Pro Pros weld and cut safely Read the safety rules at the beginning of this manual...
