In 2025, solar pump systems faced significant attention due to excessive Isc (Isc) limits. This article explains the meaning of Isc (short-circuit current), the maximum input current of the ZK200-P inverter (2.3-45A), and causes of exceeding this limit (such as overconfiguration). Exceeding this limit can lead to energy waste or damage, and the ZK200-P offers MPPT protection.