DC fuses

High-breaking-capacity, current-limiting TELECOM NH00 fuse-links deliver fast and reliable short-circuit protection for modern DC telecom power systems. Built around a pure-silver, age-resistant element, they are precisely tuned to the power-dissipation levels and switching voltages found in rectifiers, battery feeders, and distribution panels—ensuring maximum safety with minimal energy loss.

• NH DC 80V - Telecom Fuse:
  • These fuse-links are designed for battery and UPS protection and are installed in NV Telecom fuse disconnectors.
  • They have a rated voltage of 80V DC with a breaking capacity of 25kA DC.
  • The standard for these fuses is IEC 60269-1.

• NH DC 250V Fuse:
  • These fuse-links are designed for general DC applications, installed in NV Telecom fuse disconnectors.
  • They have a rated voltage of 250V DC and a breaking capacity of 25kA DC.
  • The standard for these fuses is IEC 60269-1.

• NH DC 440V Fuse:
  • These fuse-links are designed for general DC applications and are installed in PK or PT fuse bases.
  • They have a rated voltage of 440V DC and a breaking capacity of 50kA DC.
  • The standard for these fuses is IEC 60269-1.
  • The power dissipation is listed for each size, along with pre-arcing and operating Joule integrals.

• NH DC 1000V aR Fuse:
  • These fuse-links are designed for general DC applications and are installed directly on copper rails.
  • They have a rated voltage of 1000V DC with a breaking capacity of 30kA DC.
  • The standard for these fuses is IEC 60269-4.
  • Microswitch and adapter must be ordered separately.

• NH DC 1100V aR Fuse:
  • This fuse link is specifically designed for battery chargers.
  • It has a rated voltage of 1100V DC and a breaking capacity of 70kA DC.
  • The standard for these fuses is IEC 60269-4.
  • This fuse is available in a 710A size with a U-170mm screw contact.