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Small white ceramic cylinder fuse with silver metal end caps

Bussmann

Bussmann MDA-1/2-R Ceramic Fuse .50 A 10 kA 125 V AC 35 A 250 V AC line protection

SKU CH-Q17V-4XHMF

Ceramic time-delay fuse rated .50 A with 10 kA interrupt at 125 V AC and 35 A at 250 V AC

  • Time-delay design handles motor start surges
  • 10 kA interrupt at 125 V AC clears high faults safely
  • 35 A interrupt at 250 V AC protects control circuits
  • Ceramic body withstands heat and resists shattering
  • Standard 1/4 in diameter fits common fuse blocks

Ceramic Fuse for Line Protection

This Bussmann MDA-1/2-R fuse provides time-delay circuit protection for 0.5 A circuits. It uses a ceramic body and carries a 10 kA interrupt rating at 125 V AC. The fuse fits standard 1-1/4 in by 1/4 in cylindrical fuse blocks. It is suited for industrial and generator applications.

Suited for Low-Current Time-Delay Needs

This fuse suits technicians protecting control circuits or small loads that tolerate brief inrush currents. It is not for buyers who need a fast-acting fuse for sensitive electronics. It is not for installers requiring a rejection-style fuse that prevents wrong ampere ratings. It is not for systems operating above 250 V AC.

0.5 A Rating with Dual Interrupt Values

The decisive specification is the 0.5 A current rating combined with 10 kA at 125 V AC and 35 A at 250 V AC interrupt ratings. These values determine whether the fuse can safely clear faults in the target circuit. Verify the circuit voltage and available fault current against these ratings before selecting this part.

How it compares

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

Price $22.99
Cheaper than about 76% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

What fuse block series is required to install this MDA-1/2-R fuse?

This fuse is compatible with block series 3823, HFA, HHN, HK, HKP, HPF, HRK, HTB and S-8000.

Can this ceramic fuse replace a Littelfuse 326 or Mersen GSA in an existing circuit?

Yes, the MDA-1/2-R is listed as equivalent to the Littelfuse 326 series and Mersen GSA series for direct replacement.

How can I verify the fuse is intact after fitting it into the holder?

Because this is a non-indicating fuse, use a multimeter to check for continuity across the ceramic body after installation.

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