Operation Manual

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A7 MIG Welder© Kemppi Oy 2018 1824
OPERATING MANUAL
10. TECHNICAL DATA
A7 MIG Power Source 350, 450
A7 MIG Power source 350 450
Supply voltage 3~ 50/60 Hz 400 V, -15 % … +20 % 400 V, -15 % … +20 %
Mains connection cable H07RN-F 4G6 (5 m) H07RN-F 4G6 (5 m)
Maximum supply current 23 A 32 A
Eective supply current 21 A 25 A
Fuse 25 A delayed 35 A delayed
No-load voltage (peak) U0 = 85 V – 95 V U0 = 85 V – 95 V
Open circuit voltage (average) 85 V – 103 V 85 V – 103 V
Operating temperature range -20 °C … +40 °C -20 °C … +40 °C
Minimum generator power 35 kVA 35 kVA
External dimensions LxWxH 610 x 240 x 520 mm 610 x 240 x 520 mm
Weight (no mains connection cable) 40.2 kg 40.2 kg
Weight (with mains connection cable) 42.6 kg 42.6 kg
Degree of protection IP23S IP23S
Eciency (100 % duty cycle) 87 % 87 %
Power factor (at max. current) 0.85 0.88
Storage temperature range -40 °C … +60 °C -40 °C … +60 °C
Temperature class (main transformer) 155 (F) 155 (F)
EMC class A A
Minimum short circuit power Ssc of supply network 5.5 MVA 5.5 MVA
Welding range 20 A / 12 V - 350 A / 46 V 20 A / 12 V - 450 A / 46 V
Output (at 60 % duty cycle) 350 A 450 A
Output (at 100 % duty cycle) 330 A 350 A
Power supply for auxiliary devices 50 V DC / 100 W 50 V DC / 100 W
Max. apparent power 22 kVA 22 kVA
Idle power 25 W 25 W
Power supply for cooling unit 24 V DC / 50 VA 24 V DC / 50 VA