Technical Data; Tetrix 351, 421, 521 Ac/Dc - EWM TETRIX 351 AC/DC COMFORT activArc Operating Instructions Manual

3

Technical data

Performance specifications and guarantee only in connection with original spare and
replacement parts!
3.1

TETRIX 351, 421, 521 AC/DC

TETRIX
Setting ranges
Welding current
Welding voltage (TIG)
Welding voltage (MMA)
Duty cycle
60% DC
80% DC
100% DC
Load alternation
Open circuit voltage
Mains voltage (tolerances)
Frequency
Mains fuse
(slow-blow safety fuse)
Mains connection lead
Max. connected power (TIG)
Max. connected power (MMA)
Recommended generator rating
Cosϕ
Insulation class/protection
classification
Ambient temperature
Machine/torch cooling
Cooling capacity at 1l/min
Max. flow rate
Max. coolant outlet pressure
Max. tank capacity
Coolant
Workpiece lead
Dimensions L/W/H [mm]
Weight
Constructed to standards
Item No.: 099-000108-EWM01
NOTE
351
5 A to 350 A
10.2 V to 24 V 10.2 V to 26.8 V
20.2 V to 34 V 20.2 V to 36.8 V
25 °C 40 °C 25 °C
- 350 A
350 A - 420 A
320 A 300 A 380 A
10 min. (60% DC
100 V (DC)
3 x 400 V (-25% to +20%)
3 x 25 A
H07RN-F4G4
10.6 kVA
15.0 kVA
20.5 kVA
-20 °C to +40 °C
Fan/gas or water
Ex works: KF 23 E (-10 °C to +40 °C) or
KF 37 E (-20 °C to +10 °C)
2
70mm
1100 x 455 x 1000
126.5 kg
IEC 60974-1, -2, -3, -10;
Technical data
TETRIX 351, 421, 521 AC/DC
421
5 A to 420 A 5 A to 520 A
10.2 V to 30.8 V
20.2 V to 40.8 V
40 °C 25 °C
- 420 A -
- 520 A
360 A 450 A
∧
6 min. welding, 4 min. break)
98 V (DC) 79 V (DC)
50/60Hz
3 x 35 A
H07RN-F4G6
14.2 kVA
19.5 kVA
27.0 kVA
0.99
H/IP 23
1500 W
5 l/min
3.5 bar
12 l
1080 x 690 x 1195
168.5 kg
;
521
40 °C
520 A
-
420 A
20.2 kVA
26.8 kVA
38.0 kVA
2
95 mm
176 kg
15