PRODUCT GENERAL DESCRIPTION
Advanced IGBT inverter technology
• High inverter frequency greatly reduces the volume and weight of the welder.
• Great reduction in magnetic and resistance loss obviously enhances the welding efficiency and energy saving effect.
• Switching frequency is beyond audio range, which almost eliminates noise pollution.
Leading control mode
• Advanced control technology meets various welding applications and greatly improves the welding performance.
• It can be widely used in acid and basic electrode welding.
• Easy arc starting, less spatter, stable current and good shaping.
Features of WM series
• Efficiency, energy saving, portable, stable arc, high no-load voltage, and with good compensation of arc force, can
meet various welding requirements in field work.
MAIN PARAMETERS
Technical parameters table:
Output characteristic drawing:
OPERATION CONTROL AND DESCRIPTION
* Note: The duty cycle is tested at 40°C has been determined by simulation.
EN
MODEL
WM2000
WM2500
WM3000
WM3500
WM4000
Input voltage (V)
1Ph AC230V, 50Hz
Input Power (KVA)
4.7
5.6
6.6
7.7
9.0
Input current (A)
21
25
29
34
41
Rated output
120A/24.8V 140A/25.6V 160A/26.4V 180A/27.2V 200A/28V
Welding current
10~120A
10~140A
10~160A
10~180A
10~200A
No-load voltage(V)
65
65
65
65
65
Rated duty cycle
35%
35%
35%
20%
15%
Efficiency (%)
85
85
85
85
85
Power factor
0.7
0.7
0.7
0.7
0.7
Protection class
IP21S
IP21S
IP21S
IP21S
IP21S
Insulation class
F
F
F
F
F
Fig. 2
Fig. 1