"HNB250U (MCCB, 250A, 40KA Icu, Adjustable Thermal 0.63 - 1 In, Adjustable Magnetic 5 - 11 In) The HNB250U is a 250A MCCB built for demanding power networks and industrial-grade electrical systems. With an interrupting capacity (Icu) of 40KA, it delivers high-level protection against short circuits and overloads. Its adjustable thermal settings from 0.63 to 1 In allow precise temperature-based circuit protection, while the adjustable magnetic trip range of 5 to 11 In ensures optimized response to sudden high fault currents, reducing downtime and equipment failure risks. This MCCB is ideal for critical power applications requiring flexible and reliable protection."