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Five cylindrical ceramic fuses with metal end caps

Bussmann

Bussmann GDA-4A Ceramic Fuse 4A 250V 1.5kA 5pk

SKU CH-0DGJ-2B46Y

A pack of five fast-acting ceramic fuses rated 4 A at 250 V AC with a 1.5 kA interrupt rating

  • Fast-acting response protects circuits quickly
  • 5 kA interrupt rating handles fault currents safely
  • Ceramic body withstands high temperatures reliably
  • 20 mm x 5 mm size fits standard holders
  • Pack of five gives ready spares

Bussmann GDA-4A Ceramic Fuse 4A 250V

These fast-acting ceramic fuses protect circuits at 250 V AC with a 1.5 kA interrupt rating. Each 20 mm by 5 mm cylindrical body fits standard holders used in many electrical and generator applications. The pack contains five pieces for convenient replacement stock.

Suits repair of equipment using GDA, S501.

Buyers who need a higher interrupt rating, a different voltage or an indicating fuse should look at other series. The non-rejection design does not fit holders that require a rejection feature. These are single-element devices without time-delay characteristics.

Critical spec: 1.5 kA interrupt rating at 250 V AC

This rating defines the maximum fault current the fuse can safely break at the rated voltage. It must match or exceed the prospective short-circuit current of the circuit being protected. Verify the requirement before fitting.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 83% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

Does the 5 mm diameter ceramic body need any periodic cleaning or replacement beyond simply swapping a blown fuse?

No, the ceramic tube is a single-use element; once the 4 A link opens you replace the whole fuse — there is no separate maintenance schedule for the body itself.

What stops the fuse from carrying current continuously at its 4 A rating?

The fast-acting element is designed to melt quickly once current exceeds 4 A, so sustained overload is the first limit you will hit.

How much heat does the 20 mm × 5 mm ceramic fuse generate when it runs at 4 A all day?

The ceramic body dissipates the I²R loss of the element; at rated current it runs warm but stays within the temperature limits defined for the 1.5 kA interrupt rating.

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