NH Fuse Link
The NH fuse link is an electrical appliance that breaks a circuit by breaking heat from the heat generated by itself when the current exceeds a specified value. It is widely used in high and low voltage power distribution systems and control systems as well as in electrical equipment. As a protector for short circuit and over current, it is one of the most popular protection devices.
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- The NH fuse link is an electrical appliance that breaks a circuit by breaking heat from the heat generated by itself when the current exceeds a specified value. It is widely used in high and low voltage power distribution systems and control systems as well as in electrical equipment. As a protector for short circuit and over current, it is one of the most popular protection devices.
Size Rated Voltage (V) Rated Current (A) NH00 500/660 4-160 NH0 500/660 4-160 NH1 500/660 63-250 NH2 500/660 80-400 NH3 500/660 160-630 NH4 500/660 500-1250 
The NH system is classified among plug-in fuse systems and is composed of:
fuse-base (possibly including terminal covers and phase barriers)
fuse-link with blade contact
fuse-link replacement device (LV HRC fuse puller)
Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional.
Type “gG” NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from the lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from the electrodynamic effects of very high short-circuit currents.
- The NH fuse link is an electrical appliance that breaks a circuit by breaking heat from the heat generated by itself when the current exceeds a specified value. It is widely used in high and low voltage power distribution systems and control systems as well as in electrical equipment. As a protector for short circuit and over current, it is one of the most popular protection devices.
