Technical data
alpha Q 551
099-005130-EW501
07.03.2013
45
8.2
alpha Q 551
MIG/MAG
MMA
TIG
Setting range for welding current
5 A– 550 A
Setting range for welding voltage
14.3 V–41.5 V
20.2 V–42.0 V
10.2 V–32.0 V
Duty cycle at 25 °C
550 A (60%)
520 A (80%)
450 A (100%)
Duty cycle at 40 °C
550 A (60%)
420 A (100%)
Load alternation
10 min (60% DC
∧
6 min. welding, 4 min. pause)
Open circuit voltage
93 V
Mains voltage (tolerances)
3 x 400 V (-25% to +20%)
Frequency
50/60 Hz
Mains fuse
(safety fuse, slow-blow)
3 x 35 A
Mains connection lead
H07RN-F4G6
Maximum connected load
28.8 kVA
29.2 kVA
22.2 kVA
Recommended generator rating
39.4 kVA
cos
ϕ
0.99
Insulation class/protection
classification
H/IP 23
Ambient temperature
-20 °C to +40 °C
Machine/torch cooling
Fan/water
Cooling capacity at 1 l/min
1500 W
Maximum flow rate
5 l/min
Maximum coolant outlet pressure
3.5 bar
Maximum tank capacity
12 l
Welding torch coolant
Ex works: KF 23E (-10 °C to +40 °C) or
KF 37E (-20 °C to +10 °C)
Workpiece lead
95 mm²
Dimensions L x W x H
1100 mm x 455 mm x 1000 mm
Weight
138.5 kg
EMC class
A
Constructed to standard
IEC 60974-1, -2, -10
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