Miller Blue Thunder 253 Manuel du propriétaire - Page 13

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3-1. Specifications

Ampere
Rated Welding
Range
Model
Output
DC
DC
220 A @
253
29 Volts DC,
30-220 A
35% Duty Cycle
320 A @
32.8 Volts DC,
343
50-320 A
35% Duty Cycle
400 A @
36 Volts DC,
403
60-400 A
35% Duty Cycle
420 A @
36.8 Volts DC,
443
60-420 A
45% Duty Cycle

3-2. Volt-Ampere Curves

80
60
40
20
0
0
50
100 150
80
60
40
20
0
0
50
100 150
SECTION 3 − INSTALLATION
Max
IP
Open-Circuit
Rating
Voltage DC
Voltage DC
59-66 V
IP22
68 V
IP22
66-73 V
IP22
78 V
IP22
Model 253
200 250 300 350 400 450
DC VOLTS
Model 403
200 250 300 350 400 450
DC VOLTS
Amperes Input at
Rated Load Output,
50/60 Hz, Three-Phase
230 V 380 V 400 V 520 V
36 A
−−
21 A
−−
55 A
32 A
32 A
23 A
73 A
−−
42 A
−−
80 A
47 A
47 A
34 A
80
60
40
20
0
0
50
100 150 200 250 300 350 400 450
80
60
40
20
0
0
50
100 150 200 250 300 350 400 450
Dimensions
(mm)
KVA/KW
Weight
L x W x H
L x W x H
14.6/12
80 kg
980 x 410 x 650
22/18
105 kg
980 x 410 x 650
28/23
115 kg
980 x 410 x 650
32/26
175 kg
1150 x 520 x 730
The volt-ampere curves show the
normal minimum and maximum
voltage and amperage output capa-
bilities of the unit.
Model 343
DC VOLTS
Model 443
DC VOLTS
OM-233 381 Page 9