WELPRO PRO MMA 250S 20-200A Inverter Welding Machine

The WELPRO PRO MMA 250S is a professional MMA Inverter Welder designed to overcome the challenges of working in areas with unstable power conditions. It delivers a full welding current of up to 200A, providing a smooth, stable, and consistent arc for reliable welding performance. The machine supports continuous welding with 2.6-4.0 mm electrodes Equipped with PFC (Power Factor Correction) technology and a power factor of up to 0.99, the machine provides excellent energy efficiency and can operate reliably even when the input voltage drops as low as 115V The PRO MMA 250S also supports the use of extension cables up to 200 meters and can operate with 5.0 kW or higher generators available on the market, even when the generator has a THD above 20% For enhanced safety, the machine features a VRD (Voltage Reduction Device) that reduces the no-load voltage to just 14V, helping protect welders from electric shock. The built-in display shows the actual welding current, making current adjustment easier and more accurate The machine is supplied with 100% pure copper welding and earth cables, providing stable and efficient current conduction compared with conventional aluminum cables

Key Features

• Delivers a full welding current of up to 200A, providing a smooth, stable, and consistent welding arc
  
• PFC circuit with a power factor of up to 0.99, helping improve energy efficiency and allowing the machine to operate reliably with input voltage as low as 115V
  
• Compatible with 5.0 kW or higher generators, including generators with THD >20%
  
• Supports the use of extension power cables up to 200 meters while maintaining stable welding current
  
• VRD safety system reduces the no-load voltage to just 14V, helping protect the welder from electric shock
  
• Supports 2.6-4.0 mm welding electrodes for smooth and continuous welding
  
• Built-in digital display shows the actual welding current for easy and accurate adjustment
  
• 100% pure copper welding and earth cables provide excellent current conductivity and greater stability compared with conventional aluminum cables

Technical Specifications

• Brand: WELPRO
  
• Model: PRO MMA 250S
  
• Product Type: MMA Inverter Welder
  
• MMA Welding Current Range: 20-200A
  
• Electrode Diameter: 2.6-4.0 mm
  
• Input Power: Approx. 6.0 kVA (approx. 5.5 kW / supports generators rated 5.0 kW or higher)
  
• Input Voltage: AC 220V ±15%, 1 Phase, 50Hz
  
• Low Voltage Operation: Supports operation down to 115V with PFC technology
  
• No-Load Voltage: 14V with VRD / approx. 65-75V in normal mode
  
• Tungsten Electrode Size: Not supported (MMA welding only)
  
• Power Factor: 0.99 with PFC
  
• Insulation Class: Class F
  
• Welding/Earth Cable Material: 100% Pure Copper
  
• Machine Dimensions (W x L x H): 15 x 39 x 27 cm
  
• Net Machine Weight: 8 kg
  
• Package Dimensions: 30 x 50 x 33 cm
  
• Gross Package Weight: 15 kg
  
• Warranty: 3 Years

Package Includes

• Electrode Holder: 16 mm² / 7 m
  
• Earth Clamp: 16 mm² / 5 m
  
• Welding Hand Shield
  
• Welding Chipping Hammer & Wire Brush
  
• Leather Gloves
  
• Carrying Strap