The electric arcs that erupted from the Star Warrior's body had a voltage of thousands of volts, enough to char a normal person with a mere touch, yet the one pinning him to the ground was a Marine Corps member clad in Army-Breaker Armor.
In the technological tree of battle defense, Iridium Star and most civilizations in the universe have three directions—armor materials, shields, and defense systems. In equipment such as Powered Individual Armor, it's difficult to imbue too much defensive capability, primarily focusing on armor and defense systems.
The main defense system of the Army-Breaker model Powered Individual Armor targets energy weapons, possessing the ability to absorb and transfer energy, thereby maximally protecting the wearer of the Armor.
Though the electric arc was formidable, it was also forcibly absorbed by the Army-Breaker Armor.