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Cylindrical 20 A 250 V AC fuse with indicating window

Bussmann

Bussmann FRN-R-20ID 20 A 250 V AC fuse

SKU CH-H8FW-MYD5Q

A 20 A, 250 V AC time-delay fuse with a visual indicator and 200 kA interrupt rating

  • Indicating fuse shows blown status instantly
  • Time-delay design withstands motor start-up surges
  • 200 kA interrupt rating at 250 V AC
  • Class RK5 rejection style prevents wrong fuse fit
  • Dual-element construction protects against overloads and short circuits

Product Identity

The Eaton Bussmann FRN-R-20ID is a 20 A, 250 V AC Class RK5 fuse with a time-delay characteristic and an indicating body. It suits industrial panels and motor circuits that require a 200 kA interrupt rating at 250 V AC and a 20 kA rating at 125 V DC.

Installation Checklist

Confirm the fuse block accepts a 2 in by 9/16 in cylindrical body and matches the HM250 or RM250 rejection style. Verify the circuit voltage does not exceed 250 V AC or 125 V DC and that a time-delay, dual-element response is appropriate for the load.

Replacement Guidance

This fuse directly replaces FRN-R-ID, FLNR-ID, LRN-R-ID and TR-RID series parts in existing holders. The upgrade is worthwhile when an indicating, time-delay fuse with a 200 kA interrupt rating is needed to improve fault visibility and coordination in a 250 V AC system.

Highlights

  • Indicating fuse shows blown status instantly
  • Time-delay design withstands motor start-up surges
  • 200 kA interrupt rating at 250 V AC
  • Class RK5 rejection style prevents wrong fuse fit
  • Dual-element construction protects against overloads and short circuits

Specifications

BrandBUSSMANN

Questions about this item

Does the FRN-R-20ID come with a fuse block or must one be purchased separately?

The fuse is sold alone; a compatible HM250 or RM250 series fuse block must be bought separately.

Which current rating and voltage combination suits a 20 A 250 V AC circuit?

This model is rated 20 A at 250 V AC and 125 V DC, matching that requirement exactly.

What does the 200 kA interrupt rating mean for a real installation?

It means the fuse can safely clear a 200 kA fault current at 250 V AC without rupturing.

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