The CEA RAINBOW 150 ARC is a compact and lightweight inverter DC welding machine designed for maintenance and light fabrication tasks. It is suitable for professionals requiring reliable MMA (Manual Metal Arc) and TIG welding capabilities with lift arc striking.

This welding machine features advanced inverter technology with a 100 kHz power source based on the latest generation IGBT transistors, ensuring efficient and stable welding performance. Its flat transformer design contributes to its reduced size and weight of only 4.2 kg, making it highly portable and easy to carry.

Key technical specifications include a single-phase 230V 50/60 Hz input, maximum input power of 7.6 kVA, and a current range from 5 to 150 amps. The duty cycle is rated at 100 amps for 100%, 120 amps for 60%, and 150 amps for 30% at 40°C. The machine offers an open circuit voltage of 88V and protection class IP21s.

Designed for versatility, the RAINBOW 150 ARC supports three welding processes: MMA, CrNi, and TIG. It incorporates built-in arc force control for optimal arc dynamics, automatic hot start to facilitate arc striking with difficult electrodes, and an electrode antisticking function to improve welding efficiency.

Additional features include a shock-proof fiber compound structure, a control panel protected against accidental impacts, and a robust built-in handle. The unit is capable of operating with long mains cables up to 100 meters without power loss and can be powered by suitably sized generators thanks to over- and under-voltage protection. It also automatically compensates for mains voltage fluctuations within ±15%.

• Single-phase 230V input, 50/60 Hz
• Input power: 7.6 kVA
• Current range: 5-150 A
• Duty cycle: 100 A at 100%, 120 A at 60%, 150 A at 30% (40°C)
• Open circuit voltage: 88 V
• Protection class: IP21s
• Weight: 4.2 kg; Dimensions: 340 mm (L) x 115 mm (W) x 260 mm (H)
• Supports MMA, CrNi, and TIG welding processes
• Built-in arc force, hot start, and electrode antisticking functions
• Shock-proof design with impact-protected control panel
• Compatible with long cable runs and generator power sources