Miller Auto Deltaweld 452 Manuale d'uso - Pagina 17

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Miller Auto Deltaweld 452 Manuale d'uso

4-1. Specifications

Rated
Voltage
Welding
Welding
Range
Range
Output
DC
Model
300 A @ 32
300
(29) Volts
10 − 32
Amp
DC, 100%
Duty Cycle
450 A @ 38
450
(36.5) Volts
10 − 38
Amp
DC, 100%
Duty Cycle
650 A @ 44
650
Volts DC,
10 − 44
Amp
100% Duty
Cycle
*While idling
( ) Indicates specification differences for CE models

4-2. Duty Cycle And Overheating

Overheating
SECTION 4 − INSTALLATION
Amperes Input at Rated Load Output, 50 or 60 Hz,
Max
Max
IP
IP
OCV DC
Rating
200 V
48
42
21M
3.7*
72
48
21M
3.2*
54
21M
--
100% Duty Cycle
Continuous Welding
0
15
Minutes
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Three-Phase
230 V
380 V
400 V
440 V
42
27
25
23
3.2*
1.8*
1.7*
1.6*
63
39
37
33
2.7*
2.6*
2.2*
2.1*
96
58
54
50
3.2*
3.3*
3.0*
2.8*
V
OR
Reduce Duty Cycle
460 V
575 V
KVA
KW
21
17
16.9
12.9
1.6*
1.3*
1.26*
0.21*
32
25
25.1
21.1
1.4*
1.1*
1.09*
0.26*
48
38
38.2
34.2
1.6*
1.3*
1.26*
0.35*
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.
Y Exceeding duty cycle can
damage
unit
and
void
warranty.
duty1 4/95 / SA-168 918
OM-223 Page 13