| Version | Taurus 551 Basic FDW |
| Setting range for welding current | 5 A – 550 A |
| Duty cycle 40 °C | 550 A / 60 % |
| 420 A / 100 % | |
| Open circuit voltage | 79 V |
| Mains voltage | 3 x 400 V |
| Tolerances | -25 % up to +20 % |
| Mains frequency | 50 Hz / 60 Hz |
| Recommended generator power | 39.4 kVA |
| Protection classification | IP23 |
| Safety marking | ![]() |
| EMC class | A |
| Weight | 129 kg |
| Standards | IEC 60974-1, -2, -10 CL.A |







