The OTC Daihen Welbee II P502L is a 500A inverter-based welding power source engineered for high-performance arc welding across a wide range of materials, including steel, stainless steel, and aluminum. As the most powerful unit in the Welbee line, it builds on the capabilities of the M352L, P402, and P402L—delivering all their advanced features with extra power. Its high-speed computer programming and precise waveform control ensure stable arc performance, low spatter, and exceptional weld quality on everything from 1mm aluminum to 1-inch thick steel plate. Operating exclusively on 3-phase 460V, the P502L is designed for seamless integration with robotic systems, making it a robust, reliable solution for demanding automated welding environments.