What is the interrupting capacity of a class H fuse?

The interrupting capacity of a class H fuse is standardized to 10,000 amperes. This means that class H fuses are designed to safely interrupt a fault current of up to 10,000 amps without failing catastrophically. The capability to interrupt fault currents is critical in preventing damage to electrical systems and potential hazards in cases of overloads or short circuits.

Class H fuses are commonly used for low-voltage applications and are particularly suitable for protecting motors and other equipment that may face high inrush currents. Understanding the interrupting capacity is essential for selecting the appropriate fuse to ensure safety and compliance with electrical standards.