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FastMig M
Technical specifications
Connection voltage
Rated power
Output 40 °C
Welding current and voltage range
3~, 50/60 Hz
FastMig M 420 FastMig M 520
400 V -15 %...+20 % 400 V -15 %...+20 % 400 V -15 %...+20 %
60 % ED - 20 kVA 27 kVA
100 % ED 15 kVA 18 kVA 20 kVA
60 % ED - 420 A 520 A
100 % ED 320 A 380 A 430 A
MMA 15 A/20 V – 320 A/45 V 15 A/20 V – 420 A/44 V 15 A/20 V – 520 A/43 V
MIG 20 A/12 V – 320 A/45 V 20 A/12 V – 420 A/44 V 20 A/12 V – 520 A/43 V
Max. welding voltage 45 V 45 V 45 V
Open circuit voltage MMA U0 = 48 – 53 V
Uav = 50 V U0 = 48 – 53 V
Uav = 50 V U0 = 48 – 53 V
Uav = 50 V
Open circuit voltage MIG/MAG U0 = 50 – 58 V U0 = 50 – 58 V U0 = 50 – 58 V
Idle power 25 W 25 W 25 W
Efficiency at max. current 88 % 89 % 89 %
Power factor at max. current 0.80 0.87 0.90
Operating temperature range -20 ... +40 °C -20 ... +40 °C -20 ... +40 °C
Storage temperature range -40 ... +60 °C -40 ... +60 °C -40 ... +60 °C
Degree of protection IP23S IP23S IP23S
EMC class A A A
External dimensions 590 x 230 x 430 mm 590 x 230 x 430 mm 590 x 230 x 430mm
Weight 34 kg 35 kg 36 kg
FastMig M 420MV – 400 V range FastMig M 420MV – 230 V range
Connection voltage 3~, 50/60 Hz 380 V -10% ... 440 V +10% 220 V -10 % ... 230 V +10 %
Rated power 60 % ED 22kVa 21 kVa
100 % ED 19 kVa 18 kVA
60 % ED 420 A 420 A
100 % ED 380 A 380 A
MMA 15 A/20 V ... 420 A/44 V 15 A/20 V ... 420 A/48 V
Output 40 °C
Welding current and voltage range
MIG
26
FastMig M 320 20 A/12 V ... 420 A/44 V 20 A/12 V ... 420 A/48 V
Max. welding voltage 44 V 48 V
Open circuit voltage MMA U0 = 48 ... 53 V
Uav = 50 V U0 = 48 ... 53 V
Uav = 50 V
Open circuit voltage MIG/MAG U0 = 53 ... 58 V U0 = 60 ... 65 V
Idle power 25 W 25 W
Efficiency at max. current 87 % 87 %
Power factor at max. current 0.82 0.85
Operating temperature range -20 ... +40 ºC -20 ... +40 ºC
Storage temperature range -40 ... +60 ºC -40 ... +60 ºC
Degree of protection IP23S IP23S
EMC class A A
External dimensions 590 x 230 x 580 mm 590 x 230 x 580 mm
Weight 49 kg 49 kg
FastMig M