Eaton MDL-2-1/4-R 2.25 A 250 Vac Time-Lag Glass Fuse
Eaton MDL-2-1/4-R 2.25 A 250 Vac Time-Lag Glass Fuse

Eaton MDL-2-1/4-R 2.25 A 250 Vac Time-Lag Glass Fuse

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pEaton MDL-2-1/4-R — 2.25 A, 250 V, time-delay glass cartridge fuse, 100 A at 250 Vac; 10,000 A at 125 Vac interrupting./p
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    Eaton MDL-2-1/4-R 2.25 A 250 Vac Time-Lag Glass Fuse

    Built by Eaton, the MDL-2-1/4-R carries 2.25 A, rated 250 Vac, uses a time-delay element, in a glass body.

    Technical Data

    ParameterRating
    Part numberMDL-2-1/4-R
    Elementsingle element
    Typical DC cold resistance0.096 Ω
    BodyGlass tube, 1/4 x 1-1/4 in (6.4 x 31.7 mm)
    Voltage rating250 Vac
    Typical voltage drop0.535 V
    Rated current2.25 A (2-1/4 A)
    Design standardUL 248-14
    AC interrupting rating100 A at 250 Vac; 10,000 A at 125 Vac
    End capsnickel-plated brass
    Typical melting I2t49.6 A²s

    Selection Notes

    • Interrupting capability is 100 A at 250 Vac; 10,000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
    • Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
    • Startup surges of several times rated current are tolerated for a short window.
    • Glass body lets you inspect the element after a fault.
    • Best kept for lower fault-current circuits where visual diagnosis matters.
    • Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
    • Do not upsize beyond 2.25 A to stop nuisance trips — fix the cause instead.

    Typical Applications

    Engineers usually specify it for these duties:

    • EV
    • surge

    Q&A

    What are the ratings of the MDL-2-1/4-R?

    2.25 A continuous at 250 Vac, interrupting rating 100 A at 250 Vac; 10,000 A at 125 Vac.

    Is the MDL-2-1/4-R fast-acting or time-delay?

    It is time-delay. It tolerates short inrush surges.

    Can the MDL-2-1/4-R be used on a higher fault-current circuit?

    No — its interrupting rating is 100 A at 250 Vac; 10,000 A at 125 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.

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