Why Can The Short-circuit Withstand Peak Current Of Vertical Fuse Disconnectors Reach 20ka To 160ka?

Typically, the short-circuit withstand peak current of the vertical fuse switch disconnector is between 20 kA and 160 kA, reflecting its resistance to impact under extreme fault conditions. As an isolation device, the nhrt40 vertical fuse switch disconnector must withstand the instantaneous impact and thermomechanical stress from the system fault current; therefore, its short-circuit withstand peak current specification is often set between 20 kA and 160 kA.