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Technical specifications
K4283-1 FLEXTEC350x CE CONSTRUCTION
K4284-1 FLEXTEC350x CE STANDARD
POWER SOURCE – INPUT VOLTAGE AND CURRENT
Model
Duty Cycle
Input Voltage ±10%
Input
Amperes
Idle Amperes
Power Factor
K4283-1
K4284-1
60% rating
380/460/575 3PH
24/22/22
.13/.16/.27
.87/.77/.62
100% rating
380/460/575 3PH
20/19/18
.13/.16/.27
.84/.70/.61
POWER SOURCE – RECOMMENDED INPUT WIRE AND FUSE SIZE S1
Voltage Input
Amperes
Fuse (super lag) or
Breaker size2
Type S, SJ, SJ0 and SJT flexible cord
with ambient temperature of 30°C
Notes
380/3/50 21A
35A
10
AWG
(6mm
2
)
460/3/60 19A
35A
10
AWG
(6mm
2
)
575/3/60 19A
35A
10
AWG
(6mm
2
)
1: Cord and Fuse Sizes based upon the U.S. National Electric Code maximum output.
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.
RATED OUTPUT
Process
Duty Cycle
Volts at rated Amperes
Amperes
Efficiency (at rated
output)
GMAW (CV)
60% 31.5V
350
0.87/0.86/0.85
100% 29V
300
0.87/0.86/0.85
GTAW (CC)
60% 24V
350
0.83/0.83/0.82
100% 22V
300
0.83/0.83/0.81
SMAW (CC)
60% 34V
350
0.88/0.87/0.87
100% 32V
300
0.87/0.87/0.86
FCAW-GS (CV)
60% 31.5V
350
0.87/0.86/0.85
100% 29V
300
0.87/0.86/0.85
FCAW-SS (CV)
60% 31.5V
350
0.87/0.86/0.85
100% 29V
300
0.87/0.86/0.85
RATED OUTPUT IEC60974-1
DUTY CYCLE
VOLTS AT RATED AMPERES
AMPERES
60%
34
350
100%
32
300
PHYSICAL DIMENSIONS
MODEL HEIGHT
WIDTH
DEPTH WEIGHT
K4283-1
K4284-1
421 mm
338mm
582mm
41.7kg
43.9kg
TEMPERATURE RANGES
OPEARTING TEMPERATURE
STORAGE TEMPERATURE
INSULATION CLASS
-10°C to 55°C*
-40°C to 85°C
CLASS H (180°C), CLASS F (155°C)
* Power Source is de-rated at temperatures above 40°C.
AGENCY APPROVALS
MODEMARKETLCONFORMITY
MARK
MARKET
CONFORMITY MARK
STANDARD
ALL
US AND CANADA
C
CSA
US
CAN/CSA – E60974-1
ANSI/IEC – 60974-1
IEC 60974-1