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TECHNICAL SPECIFICATIONS -
POWER SOURCE-INPUT VOLTAGE AND CURRENT
Model
Duty Cycle
60% rating
K3073-1
100% rating
Process
Duty Cycle
60%
GMAW (CV)
100%
60%
GTAW (CC)
100%
60%
SMAW (CC)
100%
60%
FCAW-GS (CV)
100%
60%
FCAW-SS (CV)
100%
RECOMMENDED INPUT WIRE AND FUSE SIZES
Maximum
VOLTAGE
Input
50/60Hz
Amperes
380/3/50
42 A
460/3/60
30 A
575/3/60
25 A
(1) Cord and Fuse Sizes based upon the U.S. National Electric Code and maximum output for 40°C (104°) ambient.
(2) Also called "inverse time" or "thermal/magnetic" circuit breakers; circuit breakers that have a delay in tripping action that decreases as the
magnitude of current increases.
(3) Type SD cord or similar in 30°C ambient.
INSTALLATION
FX450
Input Voltage ± 10%
380 / 460 / 575 / 3 / 50 / 60
RATED OUTPUT
Volts at Rated Amperes
36.5V
34V
28V
26V
38V
36V
36.5V
34V
36.5V
34V
Type 75°C Copper
(3)
Cord Size
Wire in Conduit
AWG SIZES
AWG (mm
(mm)
8 (10)
8(10)
10 (6)
8(10)
12 (4)
10(6)
FX450 (RED-D-ARC)
Input Amperes
Idle Power
72 Watts
37 / 27 / 22
29 / 21 / 17
(fan on)
COPPER GROUNDING
CONDUCTOR
2
2
)
AWG (mm
)
10 (6)
10 (6)
12 (4)
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Power Factor @
Rated Output
95%
Max.
Amperes
450
400
450
400
450
400
450
400
450
400
(1)
Fuse (Super Lag) or
(2)
Breaker Size
50
45
35
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