| ARC WELDING MACHINE | ARC315EP | ARC400EP | ARC500EP |
| Input Voltage | AC(three phase)220V~415V±15% | ||
| The rated input current | 20A | 28A | 34A |
| Rated input power | 12.1KW | 17KW | 23.6KW |
| No-load voltage rated | 65V | 68V | 70V |
| Regulation of output current | 20-315A | 20-400A | 20-500A |
| Drive adjustment range | 0-150A/ms | 0-150A/ms | 0-150A/ms |
| Arc-sarting range | 15-315A | 15-400A | 15-500A |
| Arc-sarting time | 0.01-1S | 0.01-1S | 0.01-1S |
| Arc length adjustment range | 20-80V | 20-80V | 20-80V |
| Duty cycle | 60% | 60% | 60% |
| Efficiency | 90% | 90% | 90% |
| Power factor | 0.93 | 0.93 | 0.93 |
| Insulation class | F | F | F |
| Protection class of case | IP23S | IP23S | IP23S |
| Cooling method | Air cold | Air cold | Air cold |
| Overall dimension | 660*305*530mm | 660*305*530mm | 660*305*530mm |
| Gross weight | 48Kg | 51kg | 53kg |

