"HNF980U (MCCB, 1250A, 50KA Icu, Adjustable Thermal 0.4 - 1 In, Adjustable Magnetic 2.5 - 10 In) The HNF980U is a 1250A molded case circuit breaker designed for heavy industrial and commercial electrical systems. With an interrupting capacity (Icu) of 50KA, it provides exceptional protection against overloads and short circuits. The adjustable thermal settings from 0.4 to 1 In ensure flexible load management, while the adjustable magnetic trip settings from 2.5 to 10 In deliver optimized fault response. This MCCB is ideal for large power distribution systems, ensuring reliable operation and enhanced system safety in demanding environments."