Switchable inverter frequency. The basic frequency is 2000Hz (energization time resolution 0.5ms). It allows you to switch to 4000Hz (welding time resolution 0.25ms) or 5000Hz (welding time resolution 0.2ms) . Since the frequency can be selected for each program number, a frequency which is optimal to the workpiece can be selected that realizes high-quality welding with less current ripple.
Item | NRW-IN400PA |
---|---|
Connecting Transformer | NT-IN8444B、NT-IN4474A |
Control Frequency | 2000/4000/5000Hz Selectable (selectable for each PRG. No.) |
Control Method | Primary peak value current FB/Primaly average current FB/ Secondary effective vealue current FB/Secondary effective value voltage FB/Secondary effective value power FB/fixed pulse width |
Maximum primary output current | 400A air cooling 5% (200A air cooling 20%) |
Welding Parameters | 255 Paramreters |
Breaker Capacity | 75A |
User Interface | Program Box |
Monitor Function | Average/peak value of current/voltage/power/resistance, Average of pulse width |
Multi-stage Welding Function | Up to 127 STEP(slope, weld, cool)(Free Style mode) |
Cooling Method | Air cooling |
Communication, etc. | Ethernet, CF-card slot equipped |
Input Power | 3 phase AC200 to 480V ±10% |
Dimension / Weight | W200×D501×H298 (not including protruding parts)/ ≒19kg |
Item | NT-IN8444B | NT-IN4474A | ||
---|---|---|---|---|
Supply Source Voltage | AC220V | AC400V | AC220V | AC400V |
Maximum Output Current | 8000A (Duty cycle 5%) | 4000A (Duty cycle 5%) | ||
Rated Capacity (Duty Cycle 50%) t |
36 kVA | 33 kVA | 11 kVA | 10 kVA |
Rated Primary Voltage | 300V | 600V | 300V | 600V |
No-load Secondary Voltage | 14.1V | 12.9V | 8.4V | 7.6V |
Transformer Turn Ratio | 1970-01-01 22:01:00 | 1899-12-31 20:01:00 | 1899-12-31 13:01:00 | 1900-01-02 02:01:00 |
Input Frequency | 2kHz,4kHz,5kHz | 2kHz,4kHz,5kHz | ||
Cooling Method | Air cooling | Air cooling | ||
Dimension / Weight | W200 x D370 x H214mm (projections not included) / ≒23.4kg | W150 x D337 x H222mm (projections not included) / ≒14kg |