Bussmann GBB Series Very Fast-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$18.46
Bussmann GBB Series Very Fast-Acting Fuse, Ferrule Terminal

Bussmann GBB Series Very Fast-Acting Fuse, Ferrule Terminal

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Model: GBB-1-R

In Stock (leaves warehouse same day if ordered before 3pm ET)

$18.46
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Bussmann GBB Series Very Fast-Acting Fuse, Ferrule Terminal

The Bussmann GBB Series is a line of very fast-acting fuses from the Eaton Bussmann series, engineered to deliver dependable overcurrent protection for electrical and electronic circuits. This family is available in amperage/voltage ratings from 1 A - 125 V up to 2 A - 250 V, with a shared 200 kiloamp interrupt rating and ferrule-style end connections across the line. As part of the Eaton Bussmann series lineup, these fuses are designed to respond quickly to fault conditions, helping protect connected equipment, wiring, and components from damage caused by excess current. Electrical professionals rely on the Bussmann name for consistent, code-conscious overcurrent protection across commercial, industrial, and OEM applications. Whether specified for original equipment or used as a maintenance replacement, the GBB Series fuses are intended to help keep electrical systems operating safely and within their design parameters. The compact ferrule form factor, with a body diameter, height, and width of approximately .25 inches, makes these fuses well suited for space-constrained fuse holders and terminal blocks.

Key Features

  • Amperage/Voltage Range: Available from 1 A - 125 V through 2 A - 250 V to match a range of circuit protection requirements.
  • Very Fast-Acting Response: Engineered to open quickly under overcurrent or fault conditions, helping minimize the exposure time of connected circuits and components to damaging current levels.
  • Ferrule End Connections: Ferrule-type terminals on both ends provide a compact, standardized fit for common fuse holders and clips.
  • 200 kA Interrupt Rating: Rated for a 200 kiloamp interrupt capacity, supporting safe fuse operation under high fault-current conditions.
  • Compact Form Factor: Approximately .25 inch diameter, height, and width, ideal for space-constrained panels and equipment.
  • Eaton Bussmann Series Construction: Manufactured as part of the Eaton Bussmann series, a recognized line of overcurrent protection products used across a wide range of electrical and electronic applications.
  • Reliable Overcurrent Protection: Helps safeguard circuits, devices, and connected wiring from damage caused by excessive current draw, supporting safer and more dependable electrical systems.
  • Convenient Replacement Sourcing: Simplifies stocking and reordering for facilities and contractors who standardize on Eaton Bussmann series fuses for their overcurrent protection needs.

Technical Specifications

  • Connection Type: Ferrule
  • End Type: Ferrule
  • Interrupt Rating: 200 kiloamps
  • Product Width: .25 inches
  • Product Height: 0.25 inches
  • Product Diameter: .25 inches
  • Product Weight: .006 pounds
  • Amperage/Voltage Options: 1 A - 125 V, 2 A - 250 V

Typical Applications

  • Electronic and Electrical Equipment Protection
  • Control Circuit Overcurrent Protection
  • Commercial and Industrial Electrical Systems
  • Equipment Requiring Fast-Acting Fuse Protection
  • Replacement Fuse for Eaton Bussmann-Compatible Fuse Holders
  • Maintenance and Repair Stock for Electrical Panels

Why Bussmann?

Bussmann, part of the Eaton Bussmann series, is widely recognized for engineering overcurrent protection products that electrical professionals depend on for consistent, dependable performance. The very fast-acting design of the GBB Series reflects Bussmann's focus on fuse solutions built to respond quickly to fault conditions and help protect valuable equipment and wiring from damage. Choosing a genuine Bussmann GBB Series fuse means specifying a product backed by the Eaton Bussmann series' reputation for engineered, professional-grade circuit protection that electricians and facility teams can standardize on with confidence.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Semiconductor Fuse
Series:
GBB
Department:
Electrical
Product Subgroup:
Fuses
list_batch:
BUSS-20260919
Connection Type:
Ferrule
Product Width:
.25 inches
Product Weight:
.006 pounds
Interrupt Rating:
200 kiloamps
Product Details:
Electronic
Product Height:
0.25 inches
Product Diameter:
.25 inches
End Type:
Ferrule
Amperage Rating:
1A - 2A
Voltage Rating:
125V - 250V
Product Group:
Circuit Protection
Product Length:
1.25 in
Product Material:
Ceramic cartridge with nickel-plated brass endcaps

Bussmann GBB-1-R – Frequently Asked Questions

1) What amp and voltage ratings do the Bussmann GBB fuses come in?
Two ratings are offered in the GBB very fast-acting line: 1 amp at 125 volts (GBB-1-R) and 2 amp at 250 volts (GBB-2-R). If your equipment calls for a different amperage in this family, these two are the choices, and you should match the amp rating to the circuit, not round up.
2) Will a GBB fuse fit a standard 1/4 inch fuse clip or holder?
The GBB body measures .25 inches across in diameter, height and width, with ferrule ends on both sides, so it drops into fuse clips and holders built for a quarter-inch diameter ferrule fuse. Ferrule means plain metal caps on each end held by spring clips, not screw or blade terminals, so a holder prepped for bolt-down or blade fuses will not take it.
3) What does very fast-acting mean, and when should I use one instead of a time-delay fuse?
A very fast-acting fuse like the GBB opens almost immediately on an overcurrent, which is what you want protecting electronics, instrument circuits, and semiconductor devices that can be destroyed in milliseconds. It is the wrong choice on anything with an inrush surge, such as motors, transformers, or capacitive power supplies, because the startup current will blow it. For those loads specify a time-delay fuse of the same amperage and holder size instead.
4) Is the GBB fuse's 200 kA interrupt rating high enough for a panel with high available fault current?
The GBB carries a 200 kiloamp interrupting rating, which is the highest tier commonly published for a small ferrule fuse and well above the available fault current at most control circuits and branch panels. Confirm the available fault current at your point of application is at or below 200 kA and the fuse can clear it safely.
5) Is the Bussmann GBB a suitable replacement fuse for electronic equipment and MRO panel stock?
That is its main use. The GBB is an electronic-type fuse for protecting electrical and electronic equipment, control circuits, and connected wiring, and the quarter-inch ferrule form and .006 pound weight make it easy to carry in volume as repair stock. Facilities standardizing on Eaton Bussmann holders can stock both ratings (1A/125V and 2A/250V) to cover most low-current electronic circuits.
How fast can I get the Bussmann GBB-1-R delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann GBB-1-R come with a warranty?
Absolutely. The Bussmann GBB-1-R is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann GBB-1-R?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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