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Five cylindrical glass fuses with metal end caps

Bussmann

Bussmann MDL-25 Glass Fuse 25A 32V AC 1kA 5 PK

SKU CH-NRA3-D67A6

A pack of five 25 A, 32 V AC glass time-delay fuses with a 1 kA interrupt rating for circuit protection

  • 25 A time-delay fuse protects circuits from short overloads
  • 32 V AC rating suits low-voltage automotive and generator systems
  • 1 kA interrupt capacity breaks fault current safely
  • Glass cylindrical body allows visual inspection of element
  • Pack of five provides spares for maintenance or replacement

What this fuse is and who needs it

The Bussmann MDL-25 is a time-delay glass fuse rated at 25 A and 32 V AC with a 1 kA interrupt rating. It suits low-voltage circuits that experience brief inrush currents, such as generator control panels or accessory wiring. The cylindrical, non-rejection body fits standard 1-1/4 in by 1/4 in fuse holders. This pack contains five fuses for spares or multiple circuits.

Installation notes and common pitfalls

Insert the fuse into a compatible holder until the metal end caps seat firmly; no tools are required. The glass tube lets you verify the element visually after a fault. Do not use this fuse in circuits exceeding 32 V AC or where a higher interrupt rating is specified. A common error is substituting a fast-acting fuse, which will nuisance-blow on motor start-up.

The specification that decides fit

The critical figure is the 25 A rating combined with the 32 V AC voltage limit and 1 kA interrupt capacity. If your equipment calls for a different amperage, a higher voltage, or a rejection-style fuse, this MDL-25 will not provide correct protection. Always match all three values to the device label before installing.

How it compares

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

Price $32.99
Cheaper than about 68% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

How can I confirm the 25 A 32 V AC glass fuse is working after installation?

With power off, measure continuity across the fuse using a multimeter; a low resistance reading shows the element is intact and the fuse is ready to protect the circuit.

What comes in the pack and what must I buy separately?

The pack contains five MDL-25 glass fuses rated 25 A at 32 V AC; a compatible fuse holder or panel is not included and must be purchased separately.

Which equivalent series should I choose if I need a direct replacement for the MDL-25?

Equivalent series listed are Bussmann MDQ, MDV, MDX, Littelfuse 313 and 315, and Mersen GDL and GDV — select the one that matches the 25 A, 32 V AC, 1 kA interrupt rating and 1-1/4 in x 1/4 in dimensions.

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