"HND630U (MCCB, 630A, 50KA Icu, Adjustable Thermal 0.4 - 1 In, Adjustable Magnetic 2.5 - 8 In) The HND630U is a 630A molded case circuit breaker engineered for heavy-duty industrial and commercial power systems. It features an interrupting capacity (Icu) of 50KA, ensuring high protection against overloads, short circuits, and fault conditions. The adjustable thermal protection ranges from 0.4 to 1 In, providing precise overload control to prevent overheating and system failures. Additionally, its adjustable magnetic trip settings from 2.5 to 8 In offer optimized short-circuit protection, ensuring rapid response to fault currents. This MCCB is ideal for high-power electrical distribution systems where maximum safety and operational reliability are required."