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/ |
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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 |
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Multi-stage Welding Function |
Up to 127 STEP(slope, weld, cool)(Free Style mode) |
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Cooling Method |
Air cooling |
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Communication, etc. |
Ethernet, CF-card slot equipped |
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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%) |
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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) |
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