The ASP 15–18kW models specify up to 150% single-phase overload capability, providing additional flexibility when demand is distributed unevenly across the three phases. Consider a workshop operating three-phase machinery alongside lighting, portable tools and auxiliary equipment. Although the main machines may draw relatively balanced power, smaller single-phase circuits can create unequal loading during daily operation. When selecting a 3 phase inverter, engineers should examine the expected current on each phase rather than relying only on the facility's combined power demand. The 150% specification must be interpreted according to the manufacturer's permitted operating conditions and duration. It does not represent an additional 50% of continuous three-phase output capacity.