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Small cylindrical ceramic fuse with silver end caps

Bussmann

Bussmann GBB-30-R 30A 125V AC 125V DC 200A Ceramic Fuse

SKU CH-JAVC-8T03G

A 30 A very-fast-acting ceramic fuse rated 250 V AC and 125 V DC with a 200 A interrupt rating, supplied in a pack of five

  • 30 A rating protects circuits up to 30 A
  • 200 A interrupt rating at 125 V AC stops high fault current
  • 200 A interrupt rating at 125 V DC stops high fault current
  • 200 A interrupt rating at 250 V AC stops high fault current
  • Very-fast-acting design limits energy let-through during faults

Fuse for 30 A circuits

This EATON BUSSMANN GBB-series fuse protects equipment rated for 30 A at up to 250 V AC or 125 V DC. It suits industrial control panels, instrumentation circuits and similar applications where a very-fast-acting ceramic body is specified.

Very-fast-acting response under sustained fault

The single-element design interrupts 200 A at 125 V AC, 125 V DC and 250 V AC, clearing heavy over-current quickly to limit thermal stress on downstream components. Its non-indicating construction means visual confirmation requires external inspection.

Ceramic body with standard cylindrical mount

The 1-1/4 in by 1/4 in ceramic cartridge fits common fuse blocks and clips without a rejection feature. It carries CE, CSA Class 1422-01 and UL Guide JFHR2 markings and is supplied in packs of 5 for maintenance stocking.

Highlights

  • 30 A rating protects circuits up to 30 A
  • 200 A interrupt rating at 125 V AC stops high fault current
  • 200 A interrupt rating at 125 V DC stops high fault current
  • 200 A interrupt rating at 250 V AC stops high fault current
  • Very-fast-acting design limits energy let-through during faults

Specifications

BrandEATON BUSSMANN

Questions about this item

Does the GBB-30-R generate noticeable heat or noise when carrying a 30 A load continuously?

The fuse is a passive ceramic element with no moving parts, so it produces no audible noise; heat rise is normal for a 30 A rated device under full load.

What holder or block must I already have to install this 1-1/4 in x 1/4 in cylindrical fuse?

It fits standard 1/4 in diameter by 1-1/4 in length fuse clips or panel-mount holders rated for at least 250 V AC and 30 A.

Will this very-fast-acting GBB-30-R coordinate with older 322 series fuses already in my panel?

Yes, the GBB series is listed as equivalent to Littelfuse 322, so time-current characteristics match for coordinated protection.

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