Eaton GMC-2-R 2 A Medium Time-Delay 5 x 20 mm Glass Fuse
Eaton GMC-2-R 2 A Medium Time-Delay 5 x 20 mm Glass Fuse

Eaton GMC-2-R 2 A Medium Time-Delay 5 x 20 mm Glass Fuse

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pEaton GMC-2-R — 2 A, 250 V, time-delay glass cartridge fuse, 5 x 20 mm, 100 A at 250 Vac; 10,000 A at 125 Vac interrupting./p
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    Eaton GMC-2-R 2 A Medium Time-Delay 5 x 20 mm Glass Fuse

    The GMC-2-R from Eaton carries 2 A, rated 250 Vac, uses a time-delay element, in a glass body, measuring 5 x 20 mm.

    Technical Data

    ParameterRating
    Part numberGMC-2-R
    AC interrupting rating100 A at 250 Vac; 10,000 A at 125 Vac
    Typical DC cold resistance0.043 Ω
    Design standardUL/CSA 248-14
    BodyGlass tube, 5 x 20 mm
    Rated current2 A
    Voltage rating250 Vac
    Elementsingle element
    Maximum voltage drop130 mV
    Typical melting I2t8.9 A²s
    End capsnickel-plated brass

    Practical 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.
    • Footprint 5 x 20 mm — check clip or holder compatibility before substitution.
    • Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
    • Do not upsize beyond 2 A to stop nuisance trips — fix the cause instead.

    Application Scenarios

    Common installation contexts include:

    • EV
    • adapter
    • surge

    Questions and Answers

    What are the ratings of the GMC-2-R?

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

    Is the GMC-2-R fast-acting or time-delay?

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

    What size is the GMC-2-R?

    It measures 5 x 20 mm. Match the holder or clip to this footprint.

    Can the GMC-2-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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