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 |
Control Method |
Primary peak value current FB/Primaly average current FB/ |
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 |
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Supply Source Voltage |
AC220V |
AC400V |
AC220V |
AC400V |
Maximum Output Current |
8000A (Duty cycle 5%) |
4000A (Duty cycle 5%) |
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Rated Capacity |
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 |
22:1 |
44:1 |
37:1 |
74:1 |
Input Frequency |
2kHz,4kHz,5kHz |
2kHz,4kHz,5kHz |
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Cooling Method |
Air cooling |
Air cooling |
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Dimension / Weight |
W200 x D370 x H214mm (projections not included) / ≒23.4kg |
W150 x D337 x H222mm (projections not included) |