KEMPACT 181A, Operating Manual, Page: 37 / 40

3 phase models, MVU
Kempact 253 MVU 323 MVU
Connection
voltage
3~, 50/60 Hz 230V –15%…400V +15% 3~, 50/60 Hz 230V –15%…400V +15%
Rated power at
max. current
40% ED I
1max
(250 A, 230 V)
9 kVA 35% ED I
1max
(320 A, 230 V)
13.5 kVA
40% ED I
1max
(250 A, 400 V)
8.5 kVA 35% ED I
1max
(320 A, 400 V)
12.5 kVA
Supply current
40% ED I
1max
(250 A, 230 V)
22.2 A 35% ED I
1max
(320 A, 230 V)
33.3 A
40% ED I
1max
(250 A, 400 V)
12.3 A 35% ED I
1max
(320 A, 400 V)
17.8 A
100% ED I
1eff
(150 A, 230 V)
10.8 A 100% ED I
1eff
(190 A, 230 V)
14.8 A
100% ED I
1eff
(150 A, 400 V)
6.2 A 100% ED I
1eff
(190 A, 400 V)
8.3 A
Connection cable
H07RN-F 4G2.5 (2.5 mm², 5 m) H07RN-F 4G2.5 (2.5 mm², 5 m)
Fuse Type C (230V) 16 A Type C (230 V) 16 A
Type C (400V) 10 A Type C (400 V) 10 A
Welding range
10V/20A–31V/250A 10V/20A–32.5V/320A
No load voltage 46 V 50 V
Idle power
35 W 35 W
Power factor at
max.
250A/26.5V (230V) 0.94 320A/30V (230V) 0.94
250A/26.5V (400V) 0.93 320A/30V (400V) 0.94
Efficiency at
100% ED
150A/21.5V (230V) 0.79 190A/23.5V (230V) 0.80
150A/21.5V (400V) 0.82 190A/23.5V (400V) 0.83
Wire feed speed
adjustment range
1.0–18.0 m/min 1.0–20.0 m/min
Voltage
adjustment range
8.0–31.0 V 8.0–32.5 V
Filler wires Fe solid 0.8…1.2 mm 0.8…1.2 mm
Fe cored wires 0.8…1.2 mm 0.8…1.2 mm
Ss 0.8…1.2 mm 0.8…1.2 mm
Al 1.0…1.2 mm 1.0…1.2 mm
Brazing 0.8…1.0 mm 0.8…1.0 mm
Wire spool max 300 mm / 20 kg 300 mm / 20 kg
Shielding gases CO₂, Ar, Ar+CO₂ mixed CO₂, Ar, Ar+CO₂ mixed
External
dimensions
L x W x H 623 x 579 x 1070 mm L x W x H 623 x 579 x 1070 mm
Weight Not including gun
and cables 44 kg Not including gun
and cables 44 kg
Temperature class
F (155 °C) F (155 °C)
EMC class A A
Degree of
protection
IP23S IP23S