NH fuses (also known as NH Knife Blade Fuses or DIN NH Blade Fuses) were defined in the German DIN standard 43620 around 1944. They were primarily designed as general purpose fuses for the protection of conductors. NH fuses are one-time fuses, meaning once they have blown, they must be replaced with a new fuse with the same characteristics.

Fuse bases for NH fuse links. For mounting on DIN/EN rail or with screw fixing. Connection by screws, fixed nut or clamps. Wide range of accessories (contact covers, fuse link covers, partition walls) that enables IP20 protection index. Multi-pole units can be made with connection accessories.

  • Range 160A to 1250A, rated at 690Vac
  • Available for all the sizes in single pole and three pole configuration
  • Suitable for full range, motor protection & high speed fuse links
  • Approved to IEC 60269 & 60947 - 3


A fuse block is used to distribute power in vehicular electrical systems. Although the term “automotive fuse block” is frequently used, a fuse block can be used in not just cars and trucks, but also RVs, watercraft, motorcycles, and any other 12V or 24V system. “Fuse panel” is another common name for a fuse block.

A fuse block can either be independent, where each fused circuit has an input wire and an output wire, or ganged, where power is shared among all the circuits.

  • Power efficiency
  • Completely tested
  • Light weight