Three-phase welding generator

Manufacturer: Commercy Soudure (France)

Type: Three-phase welding generator – PSA automatic welding power source

Industrial Applications:

Automated welding in PSA (Poste Soudure Automatisé) lines. Designed for heavy-duty applications such as structural welding, steel frames, pressure vessels, and repetitive industrial welds in steel and stainless steel.

Main Technical Specifications:

• Current type: Three-phase – Forced air cooling
• Duty cycle: 400 A at 100%
• Open-circuit voltage (U0): 67.2 V
• Welding voltage (U2): 34 V
• Welding current (I2): 400 A
• Welding range: 20 A / 15 V to 400 A / 34 V
• Power supply voltages (U1): 230 V or 400 V
• Current consumption:
• 400 V → 27.1 A
• 230 V → 46 A
• Frequency: 50 / 60 Hz
• Insulation class: CL H
• IP rating: IP 23
• Compliance: EN 60974-1
• Apparent power: 18.9 kVA
• Serial / Manufacturing Ref.: W000132844 – N° 07359 VQ 334

🧩 Machine Usage

This generator is optimized for PSA robotic or semi-automatic welding setups. Delivers high-stability welding performance for thick materials in industrial production. Suited for continuous use in fabrication shops, steelwork manufacturing, and automated welding stations.

⚙️ Features / Differentiators

The CY 387 R PSA offers:

• Full-power welding at 400 A continuous (100% duty cycle)
• Dual-voltage input (230 / 400 V three-phase)
• PSA automation-ready interface (torch control and external trigger compatibility)
• IP23 protection and forced-air cooling for high-demand environments