IGBT inverter.
Sell well in heavy-duty industrial application in China, high price/performance ratio. 
 

 

Technical Specification:

Welding machine	ZX7-400N
Zero-load voltage(V)	67
Load voltage(V)	21.6-36
Rated welding current(A)	400
Range of output current(A)	40-400
Rated input capacity(KVA)	17
Input power	3phase, AC380, 50/60Hz
Rated duty cycle (%)	60%
Efficiency (%)	≥ 85%
Cosφ	0.99
Class of insulation	H
Protection degree of enclosure	IP21S
Dimension(mm)	482× 252× 460
Weight (kg)	18