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Multimeter fuses

Klein Tools Fast-acting ceramic fuse, 10 A, 10 × 38 mm (0.39 × 1.50 in)

The only fuse here that states dimensions, current, voltage and body material — and the most expensive per piece by a wide margin.

Klein Tools 69034 ceramic replacement fuse, 10 by 38 millimeters

Klein Tools Fast-acting ceramic fuse, 10 A, 10 × 38 mm (0.39 × 1.50 in)

The only fuse here that states dimensions, current, voltage and body material — and the most expensive per piece by a wide margin.

Body type
FAST-ACTING CERAMIC, stated in so many words. This shelf's introduction says ceramic sand-filled bodies are specified where the meter must interrupt a high-energy fault and that a glass fuse of the same current rating does not do the same job. Of the three American fuses on this shelf, this is the ONLY one that puts its body material in writing
Stated dimension or range
10 × 38 mm (0.39 × 1.50 in), stated in the product title. That is the high-energy instrument format — markedly larger than the 5 × 20 mm (0.20 × 0.79 in) and 6.3 × 32 mm (0.25 × 1.26 in) bodies of the three fuses already published here
Current rating
10 A, stated. The two other American fuses on this shelf are both 11 A, so this is the only 10 A part of the three — and this shelf's introduction is explicit that you replace with the exact part the manual specifies, not with the fuse that fits
Voltage rating
1000 V, stated. No fuse previously published on this shelf is rated above 690 V. A 1000 V rating is what a CAT III or CAT IV current input needs, and it is the figure that most often differs between the right fuse and the one that fits the holder
Breaking characteristic
Fast-acting, stated. Klein adds that it "reduces the risk of internal arc flashes during operation" — which is the whole purpose this shelf's introduction describes: a fuse in a current input is a safety component before it is a consumable
Supplied
ONE fuse, at $15.99. That is the most expensive piece on this shelf by a long way: the YUNFOOK two-pack works out at $5.85 each and the Fluke five-pack at $8.48 each. Klein states compatibility with its MM600, MM700 and MM720 meters, and notes Cat. No. 69035 as a companion part
Also stated
Klein also claims "long-lasting performance" and "reliable and safe", which say nothing measurable. Two of the seven bullets on this listing are of that kind — and on a safety component, the four numbers matter and the adjectives do not
Amazon reference
B01JBMZ3B8
EAN
0092644690341
  • Says it is ceramic, which the other two never do
  • All four of the hub's numbers published
  • Fifteen ninety-nine for a single fuse

Best for: A Klein MM600, MM700 or MM720 whose current input has blown, where the manual names this part number

≈ $16
Check price on Amazon

Specifications

Body type
FAST-ACTING CERAMIC, stated in so many words. This shelf's introduction says ceramic sand-filled bodies are specified where the meter must interrupt a high-energy fault and that a glass fuse of the same current rating does not do the same job. Of the three American fuses on this shelf, this is the ONLY one that puts its body material in writing
Stated dimension or range
10 × 38 mm (0.39 × 1.50 in), stated in the product title. That is the high-energy instrument format — markedly larger than the 5 × 20 mm (0.20 × 0.79 in) and 6.3 × 32 mm (0.25 × 1.26 in) bodies of the three fuses already published here
Current rating
10 A, stated. The two other American fuses on this shelf are both 11 A, so this is the only 10 A part of the three — and this shelf's introduction is explicit that you replace with the exact part the manual specifies, not with the fuse that fits
Voltage rating
1000 V, stated. No fuse previously published on this shelf is rated above 690 V. A 1000 V rating is what a CAT III or CAT IV current input needs, and it is the figure that most often differs between the right fuse and the one that fits the holder
Breaking characteristic
Fast-acting, stated. Klein adds that it "reduces the risk of internal arc flashes during operation" — which is the whole purpose this shelf's introduction describes: a fuse in a current input is a safety component before it is a consumable
Supplied
ONE fuse, at $15.99. That is the most expensive piece on this shelf by a long way: the YUNFOOK two-pack works out at $5.85 each and the Fluke five-pack at $8.48 each. Klein states compatibility with its MM600, MM700 and MM720 meters, and notes Cat. No. 69035 as a companion part
Also stated
Klein also claims "long-lasting performance" and "reliable and safe", which say nothing measurable. Two of the seven bullets on this listing are of that kind — and on a safety component, the four numbers matter and the adjectives do not
Amazon reference
B01JBMZ3B8
EAN
0092644690341

What the maker puts in writing

  • “Replacement Fuse, 10x38, 10A, 1000V”
  • “FAST-ACTING CERAMIC: Swift response to protect the multimeter from damage”
  • “ENHANCED SAFETY: Reduces the risk of internal arc flashes during operation”
  • “For use with Klein Tools’ MM600, MM700 and MM720 Multimeters”
  • “Compatible with Cat. No. 69035 for added convenience”
  • Sold as ONE fuse · $15.99

Four numbers, all four published

Which is more than either of the other American fuses on this shelf manages.

This shelf’s introduction names them: dimensions, current rating, voltage rating, breaking characteristic.

Ten by thirty-eight millimeters. Ten amps. A thousand volts. Fast-acting.

And then the fifth thing, which the hub’s own tag line makes the most important of them all.

It says CERAMIC

The YUNFOOK does not. The Fluke does not.

“A glass fuse in a meter that specifies ceramic is not a substitute.”

A ceramic body is packed with sand that quenches the arc as the element melts. A glass body has air in it.

At the energies a 1000 V current input can see, that is the difference between a fuse opening and a fuse rupturing.

Three American fuses on this shelf, all three rated 1000 V. ONE of them names its body material.

A thousand volts, where this shelf topped out at 690

The three fuses already published here are European and small: 5 × 20 mm (0.20 × 0.79 in) glass at 250 V, 5 × 20 mm (0.20 × 0.79 in) ceramic at 250 V, 6.3 × 32 mm (0.25 × 1.26 in) at 690 V.

None of them above 690.

All three American parts are 1000 V, and this one and the YUNFOOK are in the 10 × 38 mm (0.39 × 1.50 in) format — the body size specified where a current input has to interrupt a real fault.

And it is the most expensive piece here

Fifteen ninety-nine for one.

The YUNFOOK: two for $11.69, so $5.85 each. The Fluke: five for $42.42, so $8.48 each.

Nearly three times the YUNFOOK, fuse for fuse.

What the premium buys is a part number your meter’s own maker names — if your meter is an MM600, MM700 or MM720.

Availability

On sale at around 16 € on the American Amazon store at the time of checking.

Prices and availability are what Keepa reported on the date this page was updated; both move.

Prices quoted in this text were read on 8 October 2026. The live price is at the top of the page.

What gets asked here

Why does ceramic matter when a glass fuse of the same rating is cheaper?

Because the two fail differently. A ceramic body is packed with sand that quenches the arc as the element melts; a glass body has air in it and shows you the broken wire, which is handy for diagnosis and bad for interruption. At the energies a 1000 V current input can see, a glass fuse can rupture rather than open. That is why this shelf's tag line says a glass fuse in a meter that specifies ceramic is not a substitute, and it is why this listing putting the word CERAMIC in a bullet is worth more than the other two listings' silence.

Ten amps or eleven?

Whichever your manual says, and they are not interchangeable in either direction. This fuse is 10 A; the other two American parts on this shelf are both 11 A. Fitting an 11 A fuse where the meter specifies 10 A raises the current the meter will pass before the fuse opens; fitting a 10 A where 11 A is specified means nuisance blowing on a legitimate reading. This shelf's buying tip exists for exactly this: replace with the exact part the manual specifies, not with the fuse that fits the holder.

Is fifteen ninety-nine reasonable for one fuse?

It is the most expensive piece on this shelf, and it is also the only one that tells you what it is made of. Per fuse the YUNFOOK is $5.85 and the Fluke $8.48, against $15.99 here. If your manual names the Klein part number, the premium is for a part the maker of your meter stands behind; if it does not, you are paying a brand premium for a 10 × 38 mm (0.39 × 1.50 in) 10 A 1000 V ceramic fuse, which is a specification several makers meet.

More multimeter fuses

  • PeakTech P 7610 high-voltage instrument fuse alongside a multimeter

    PeakTech Fast-acting fuse, 0.5 A, 6.3 × 32 mm (0.25 × 1.26 in)

    The instrument-grade format: 6.3 × 32 mm (0.25 × 1.26 in) at a rated 690 V, super fast-acting, which is what a properly specified meter current input takes.

    Amazon reference
    B07SQQXXP3 (identical on 5 markets)
    EAN
    4250569402852
    Stated dimension or range
    6.3 × 32 mm (0.25 × 1.26 in)
    Fuse rating
    500 mA · 690 V rated · super fast-acting (FF)
    • A 690 V rating, far above the 250 V of the general-purpose fuses here
    • The 6.3 × 32 mm (0.25 × 1.26 in) format used by instrument current inputs
    • One value only — 500 mA, which fits the low current range and not the 10 A input

    Best for: The meter whose manual specifies exactly this — and it should be checked, not assumed.

    Search Amazon for this model
  • SeKi ceramic 5 by 20 millimeter fuses in a row on a workbench

    SeKi Ceramic fuses, 10 A, 5 × 20 mm (0.20 × 0.79 in), ten-pack

    Ten ceramic fuses with all four specifications stated — size, current, voltage and characteristic — which is the only way a replacement fuse can be chosen.

    Amazon reference
    B0CVXQGP7P (identical on 5 markets)
    EAN
    4053171962161
    Stated dimension or range
    5 × 20 mm (0.20 × 0.79 in) ceramic
    Fuse rating
    10 A / 250 V · time-delay (T)
    • All four figures published: 5 × 20 mm (0.20 × 0.79 in), 10 A, 250 V, time-delay
    • Ceramic bodies, which is what a meter's current input normally specifies
    • A 250 V rating is below what many meters specify for the current input

    Best for: The meter whose manual specifies exactly 5 × 20 mm (0.20 × 0.79 in), 10 A, 250 V, time-delay — and no other.

    Search Amazon for this model
  • YUNFOOK DMM-11A multimeter fuses, two in a pack

    YUNFOOK Fast-acting fuse, 11 A, 10 × 38 mm (0.39 × 1.50 in), pair

    The cheapest 1000 V fuse per piece on this shelf, and the only one that names the part number it replaces.

    Stated dimension or range
    10 mm (0.39 in) × 38 mm (1.50 in), stated, and then repeated in inches as 0.41" × 1.50". That is the high-energy instrument format, the same as the Klein on this shelf — and more than the Fluke page gives, which publishes no fuse dimensions at all
    Current rating
    11 A, stated, matching the Fluke and differing from the Klein's 10 A. The listing adds a sentence the other two do not: "Always verify these specifications match your meter's original fuse before installation. Using an incorrect fuse can be a serious safety hazard" — which is this shelf's buying tip, written by the seller
    Voltage rating
    1000 V AC and DC, stated. Both polarities named, which the other two leave implicit. No fuse previously published on this shelf is rated above 690 V
    Breaking characteristic
    Fast-acting, stated, with the reason given: "rapid protection for your meter's sensitive internal circuitry (and for you) in case of accidental overload". No breaking capacity in kiloamps is published
    Body type
    NOT PUBLISHED. Five long bullets and a page of prose, and nowhere does it say ceramic or glass. The shelf's tag line is that a glass fuse in a meter specifying ceramic is not a substitute, and this is a 1000 V part — which is precisely where the distinction bites
    Supplied
    TWO fuses, $11.69, so $5.85 each — the cheapest 1000 V piece on this shelf. The Fluke five-pack is $8.48 each and the single Klein is $15.99. For a drawer that wants one spare rather than four, a pair is the sensible quantity
    Also stated
    A direct replacement for multimeter fuse part number 803293, and stated to suit meters from Fluke, Amprobe, BK Precision and Klein Tools that specify an 11 A / 1000 V fuse, with "check your meter's manual to confirm". It is the only fuse on this shelf that names the part number it stands in for, and it names BRANDS rather than models
    Amazon reference
    B0G8WXL5S7
    EAN
    0716841567298
    • Five eighty-five a fuse, the cheapest 1000 V part here
    • Dimensions in millimeters and in inches
    • No body material: ceramic or glass is never said

    Best for: Keeping spares for an 11 A / 1000 V current input, where the manual gives a part number rather than a brand

    ≈ $12
    Check price on Amazon

Elsewhere in the spares drawer

  • Leopacat TM-902C handheld thermocouple thermometer with its wire probe

    Leopacat Type K thermometer with probe

    A probe with its own readout: a handheld type K thermometer for measuring temperature without occupying a multimeter.

    Amazon reference
    B0CQJYQ1ZX (identical on 6 markets)
    EAN
    7362571391967
    Thermocouple type
    Type K
    Supplied
    handheld thermometer with probe
    Functions
    wide operating range
    • Comes with its own display, so it does not tie up a multimeter for the duration of a measurement
    • Type K, so any standard probe fits it
    • No accuracy figure published

    Best for: Leaving on a monitored point while the multimeter goes on doing something else.

    Check price on Amazon
  • Nxtop WRNK-187 type K thermocouple probe with yellow miniature connector

    Nxtop Sheathed type K probe, 1100 °C (2012 °F), 3 × 200 mm (0.12 × 7.87 in)

    The cheapest probe on this shelf, the hottest, and the only one that publishes a dimension for its plug.

    Type and plug fit
    Type K with a MINIATURE K-TYPE CONNECTOR, and the fork terminal spacing is published: 5 mm (0.20 in), 0.197 inch. It is the ONLY probe on this shelf that gives a dimension for its plug, and this shelf's introduction says in so many words that "the miniature flat plug that connects it is where fit fails". A nine-dollar probe answers the shelf's stated failure point, and the twenty-seven and thirty-dollar Kleins do not
    Probe style
    A SHEATHED ROD, 3 mm (0.12 in) diameter by 200 mm (7.87 in) long — the immersion style this shelf's introduction names. Total length 29.5 cm (11.6 in) with the cable gland, so roughly 9 cm (3.5 in) of that is body rather than probe. It is the only product on this shelf whose probe geometry is fully dimensioned
    Stated temperature range
    0 to 1100 °C (32 to 2012 °F), stated. That is the HIGHEST range published by any probe on this shelf: the Klein 69142 reaches 480 °C (896 °F), the published Taiss 350 °C (662 °F), the ZIBOO clamp 200 °C (392 °F) and the Klein 69140 clamp 100 °C (212 °F). Only the Fieldpiece ST4 meter claims more, at 1300 °C (2372 °F), and that is the instrument's range rather than a probe's. Like the Klein 69142 it does not go below zero
    Cable length
    30 cm (11.8 in), 12 inches, stated "not stretched" — the SHORTEST on this shelf by a wide margin. The two pipe clamps give 102 cm (40.2 in), the Klein 69142 three feet, the published Taiss 3 m (10 ft). Thirty centimeters puts your hand about a foot from whatever is at 1100 degrees, which is the real limit of this probe and has nothing to do with its sensor
    Stated accuracy
    NOT PUBLISHED, and no tolerance class is named either. Only the two pipe clamps on this shelf publish a percentage at all; this one publishes nothing. At $8.99 that is the trade being offered, and the sentence both Klein clamps print applies here too whether or not it is written: what turns the junction voltage into a number is your meter
    Heat resistance
    Implied by the 1100 °C (2012 °F) range for the sheath, and unstated for the cable. The listing describes the materials only as "Electronic Parts, Plastic" and the color as yellow, which is the standard color coding for type K in American practice. A plastic-insulated 30 cm (11.8 in) lead is what sets the working distance, not the stainless rod
    Also stated
    78 grams, against 11 g (0.4 oz) for the Klein 69142. The listing is written as a parts-catalog entry rather than marketing — product name, model, type, color, material, range, weight, fork spacing, probe dimensions, total length, cable length, package contents — and that is why it publishes more dimensions than anything else on this shelf
    Amazon reference
    B07DNGWLFS
    EAN
    0703064924915
    • Eleven hundred degrees for nine dollars
    • The only plug dimension published on this shelf — 5 mm (0.20 in)
    • Thirty centimeters of cable, at 1100 degrees

    Best for: Kiln, furnace, forge and flue work, where 1100 °C (2012 °F) is the specification and a 30 cm (11.8 in) cable is enough

    ≈ $9
    Check price on Amazon
  • Proster dual-channel thermometer with two type K probes attached, showing both readings

    Proster Two-channel thermocouple thermometer

    The instrument that measures a difference rather than a temperature: two channels, with T1−T2 displayed directly instead of subtracted by hand.

    Amazon reference
    B071RNW2C6 (identical on 6 markets)
    EAN
    0711583415319
    Channels
    Two channels · T1 / T2 / T1−T2
    Also stated
    J, K and T types
    Functions
    MAX, MIN, AVG
    • Two channels with a direct T1−T2 display — the measurement most temperature work actually needs
    • Accepts J, K and T type probes across very wide stated ranges
    • No accuracy figure published

    Best for: Flow and return, inlet and outlet, before and after — anything where the answer is a difference.

    Check price on Amazon

All multimeter fuses