The Ralli Wolf RA25S ARC 250 is a compact inverter welding machine designed for general fabrication, metalworking, and maintenance applications. Featuring MOSFET inverter technology and an adjustable welding current range of 30–250A, it offers precise current control and reliable arc performance for a variety of welding tasks.
The machine incorporates built-in Arc Force and Hot Start functions to assist with arc striking and help reduce electrode sticking. Its single-PCB design supports simplified maintenance, making it suitable for fabrication workshops, repair facilities, and professional welding applications.
Key Features
250A maximum welding current
MOSFET inverter technology
230V single-phase power supply
Adjustable output current from 30A to 250A
Built-in Arc Force control
Hot Start function for easier arc initiation
Stable arc performance and precise current control
Supports 1.6–3.15 mm electrodes for continuous use
Supports 4.0 mm electrodes for intermittent use
Single-PCB design for simplified maintenance
Suitable for general fabrication and repair work
Applications
General metal fabrication
Workshop welding
Equipment maintenance and repair
Steel fabrication
Metal joining and repair work
General-purpose electrode welding
Small fabrication units and maintenance workshops
Technical Specifications
Specification
Details
Brand
Ralli Wolf
Model
RA25S
Product Type
ARC 250 Inverter Welding Machine
Inverter Technology
MOSFET
Input Supply
AC 230V ±15%
Phase
Single Phase
Frequency
50/60 Hz
Rated Input Current
40A
Rated Input Power
9.4 kVA
No-Load Voltage
70V
Output Current Range
30–250A
Rated Output Voltage
30V
Duty Cycle
60%
No-Load Loss
40W
Efficiency
85%
Power Factor
0.73
Insulation Grade
F
Protection Grade
IP21S
Arc Force Control
Yes
Net Weight
17.5 kg
Welding Accessories
Not included
Package Details
1 × Ralli Wolf RA25S ARC 250 Inverter Welding Machine
Welding cables, electrode holder, earth clamp, and other accessories are not included according to the manufacturer's catalogue.
