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Five cylindrical ceramic fuses with metal end caps

Bussmann

Bussmann MDA-3-2/10-R Ceramic Fuse 3.20A 250V AC 100A 5 PK

SKU CH-EV55-X8D9A

Ceramic time-delay fuse rated 3.20 A at 250 V AC with a 100 A interrupt rating, supplied in a pack of five

  • Time-delay protection handles motor start-up surges
  • Ceramic body withstands high interrupt energy
  • 100 A interrupt rating at 250 V AC
  • Standard 1-1/4 × 1/4 in size fits common blocks
  • Pack of five simplifies maintenance stocking

What this fuse does

This EATON BUSSMANN MDA-series ceramic fuse provides time-delay overcurrent protection rated at 3.20 A and 250 V AC. It is intended for circuits that experience brief inrush currents without nuisance opening. The 100 A interrupting rating at 250 V AC allows it to clear faults safely in compatible equipment. Supplied as a pack of five identical fuses.

How it fits a circuit

The cylindrical body measures 1-1/4 in long by 1/4 in diameter and uses a non-rejection design that fits standard fuse blocks. Compatible block series include 3823, HFA, HHN, HK, HKP, HPF, HRK, HTB and S-8000. Cross-reference equivalents are Littelfuse 326 and Mersen GSA series. No indicator window is fitted, so visual inspection or testing is required after a fault.

Behaviour under sustained load

Time-delay construction tolerates temporary overloads while still opening on sustained overcurrent. The ceramic body withstands high interrupting energy without shattering. Single-element design gives predictable clearing under continuous fault conditions. Not suited for applications that require fast-acting response or visual blow indication.

How it compares

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

Price $19.99
Cheaper than about 79% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

At what current does the 3.20 A ceramic fuse open after a sustained overload?

The time-delay element allows temporary surges above 3.20 A before opening; exact clearing time depends on the overload magnitude.

How much heat does the fuse generate during continuous all-day operation at rated current?

Normal operation at 3.20 A produces only minimal warmth; the ceramic body dissipates heat effectively without becoming hot to the touch.

Which fuse block series must I already have to install these 1-1/4 in × 1/4 in cylindrical fuses?

Compatible blocks include the 3823, HFA, HHN, HK, HKP, HPF, HRK, HTB and S-8000 series.

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