Compact Cartridge Fuses Handle 40A To 63A

Littelfuse offers what it’s calling the smallest cartridge fuse series available that’s rated at 500 Vac with current ratings from 40A to 63A and a 2 kA at 500 Vac interrupting rating. The 606 Series Cartridge Fuse is designed for overcurrent protection in applications such as high voltage power supply circuits rated up to 23 kW. With a 10 mm x 32 mm cartridge body, a single 606 fuse requires less board space than previous designs that used multiple lower current rated fuses in parallel. Applications include:

  • Telecom Uninterruptible Power Supplies (UPSs)
  • Power conversion equipment such as inverters and rectifiers
  • Electric Vehicle Supply Equipment (EVSE)
  • Off-board charging posts
  • Motor protection in elevator systems  

Other features include end caps with integrated stand-off leads eliminate the need for mounting accessories and/or lead-forming processes and an operating temperature range from -55˚C to 125˚C. More information and specs are available on the 606 Series product page and from the 606 Series datasheet.


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