Industrial Electronics

Littelfuse offers compact cartridge fuses with high-current, high-voltage ratings

16 February 2022

Littelfuse Inc., a manufacturer of circuit protection, power control and sensing technology solutions, has launched a compact cartridge fuse series rated at 500 V AC/V DC with current ratings from 40 A to 63 A and a 10,000 A interrupting rating.

The 607 Series high-current, high-voltage cartridge fuse, designed for overcurrent protection applications, provides a robust solution for demanding high-voltage power supply circuits. The 500 V fuse rating is suitable for both AC and DC inputs. With a 10 mm x 32 mm cartridge body, a single 607 fuse requires lessSource: Littelfuse Inc.Source: Littelfuse Inc. board space than previous designs that used multiple lower current rated fuses in parallel. As a result, designers can reduce the board space they reserve for protection components when designing high wattage equipment. View the video.

Typical applications for 607 Series high-current cartridge fuses include:

  • Datacenter
  • Telecom
  • Electric vehicle charging
  • HVAC systems
  • Uninterruptable Power Supply (UPS)
  • Inverters and rectifier

“Today’s power designers need greater layout flexibility to help reduce the size of their high-wattage designs while increasing reliability,” said Style Liu, global product manager, electronics business unit at Littelfuse. “Not only does the 607 series offer a very compact footprint that saves board space, but also offers a very high interrupt rating and a high current rating when compared to similar fuses on the market.”

The 607 Series high-current cartridge fuses offer these key benefits:

  • The compact cartridge fuse series is available with a high 500 V rating for both AC and DC, and current ratings from 40 A to 63 A.
  • High interrupting rating (10 KA at 500 V AC/500 V DC) provides a solution for dual voltage source power supplies suitable for a wide variety of applications.
  • End caps with integrated stand-off leads eliminate the need for mounting accessories or lead-forming processes.
  • Operating temperature range from -55˚ C to 125˚ C provides reliable protection in extreme temperature environments.
  • Environmentally friendly component that is RoHS compliant, halogen-free and 100% lead-free.

The 607 Series high-current cartridge fuses are available in through-hole, 10 mm x 32 mm packages in trays in quantities of 500. Sample requests may be placed through authorized Littelfuse distributors worldwide.

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