Detailed Product Description

Features: 
* With advanced PWM & PFM controlled technology
* They are small in size, firm in structure, light in weight and portable for carry
* Adopts soft magnetic ferrite materials for main transformer and IGBT power
    components for high efficiency and economical energy usage
* Accurate current preset function guarantees identical actual current
* Multi-protection functions provide authentic reliability
* Strong ability against electricity fluctuation
* "Pulse" frequency could be shifted from 5Hz-500Hz
* Adjustable clearing width, gas pre-sending and gas lag-cutting are available
* Suitable for welding stainless steel, carbon-steel, copper and etc. They are
    applicable in petroleum & chemical industry, electric power construction, building
    construction, pipeline assembling and other popular mechanical manufacturing
    industries

Specifications:
WSE-250, WSE-350, WSE-500
1) Rated input voltage: 380V/3Ph/50 - 60Hz
2) Rated input current: 14A, 20A, 36A
3) Rated input power: 8.8kVA, 14kVA, 24kVA
4) No-load voltage: 72V
5) Pulse frequency: 0.5 - 500Hz
6) Pulse and empty ratio: 15 - 100%
7) Purge effect: 20 - 80%
8) Time for rising: 0 - 10s
9) Time for decreasing: 0 - 10s
10) Time for gas lag-cutting: 3 - 10s
11) Time for pre-feeding: 0.1s
12) Welding current: 20 - 250A, 20 - 350A, 20 - 500A
13) Rated duty cycle: 60%
14) Efficiency (under rated conditions): ≥0.85
15) Welding thickness: ≥0.3mm thin and medium plate
16) Dimensions: 620 x 340 x 770mm
17) Weight: 56kg, 61kg, 66kg
18) Insulation grade: F
19) Cover protection grade: IP21S 

Packing:
Wood or paper package