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Four hundred amps, tinned copper, M10

kidodI Pair, 400 A continuous, 12–48 V, 8 × M10, tinned copper

A pair of 400 A busbars for 12 V to 48 V with eight M10 studs each, in thickened tinned copper with a glass-fibre reinforced nylon housing and removable side windows.

kidodI 400 A copper busbars with M10 studs and covers

kidodI Pair, 400 A continuous, 12–48 V, 8 × M10, tinned copper

A pair of 400 A busbars for 12 V to 48 V with eight M10 studs each, in thickened tinned copper with a glass-fibre reinforced nylon housing and removable side windows.

Current rating
Up to 400 A continuous, compatible with all common 12 V to 48 V DC systems, first bullet — the highest in this family
Studs
Eight M10 screw connections per bar, first bullet — twice the count and a larger thread than either alternative here
Material
A thickened copper plate in a glass-fibre reinforced nylon housing, second bullet
Plating
Tinned, described as giving the lowest contact resistance, second bullet
Cover
A housing with removable side windows for tool-free wiring, fifth bullet
Mounting
Four fixings supplied, with a non-slip foam layer underneath for stability under vibration, third and fifth bullets
Pole separation
Two 400 A busbars supplied, fifth bullet
Amazon reference
B0H1MLZS17 (same reference on 5 Amazon marketplaces)
EAN
0614587195662
  • Copper rather than brass, which is the better conductor of the two
  • Eight M10 studs per bar, the most connections and the largest thread here
  • The most expensive busbar in this family

Best for: A large battery bank where eight heavy cables meet at each pole.

≈ €47
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Specifications

Current rating
Up to 400 A continuous, compatible with all common 12 V to 48 V DC systems, first bullet — the highest in this family
Studs
Eight M10 screw connections per bar, first bullet — twice the count and a larger thread than either alternative here
Material
A thickened copper plate in a glass-fibre reinforced nylon housing, second bullet
Plating
Tinned, described as giving the lowest contact resistance, second bullet
Cover
A housing with removable side windows for tool-free wiring, fifth bullet
Mounting
Four fixings supplied, with a non-slip foam layer underneath for stability under vibration, third and fifth bullets
Pole separation
Two 400 A busbars supplied, fifth bullet
Amazon reference
B0H1MLZS17 (same reference on 5 Amazon marketplaces)
EAN
0614587195662

Four hundred amps on tinned copper, with eight studs a side.

Copper, tinned

A thickened copper plate rather than brass, tinned for the lowest contact resistance. At four hundred amps the conductor choice stops being academic, and this is the only copper bar in this catalogue.

Eight M10

Eight screw connections per bar. Twice as many as either alternative here and a larger thread. That suits a bank where several batteries, an inverter and a charger all land on the same pole — and it means M10 lugs, which are less common in a small van installation than M8.

The housing

Glass-fibre reinforced nylon with removable side windows. The windows are the thoughtful part: a covered bus is awkward to wire, and these open the working space without tools.

Underneath

A non-slip foam layer, named for vibration and uneven mounting surfaces. Four fixings supplied.

The rating

Up to 400 A continuous across 12 V to 48 V. Stated as a continuous figure, which is the one a battery bus has to hold all day.

Availability

German Amazon store quoted about 47 € when this page was compiled.

American, French, Italian and Spanish Amazon catalogues carry an entry for it, with nobody selling.

British Amazon store returned nothing at all, so the buy button there runs a search instead of landing on an empty page.

These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.

Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.

More busbars

  • Aigreat busbar pair in red and black with clear covers

    Aigreat Pair, 250 A at 12 V, 48 V max, 4 × M8 plus 3 screw terminals

    A red and black busbar pair rated 250 A at 12 V with a 48 V DC maximum, each with four M8 studs and screw terminals, in nickel-plated brass with covers.

    Current rating
    250 A when working in a 12 V circuit, second bullet
    Studs
    Four M8 bolt terminals and three number 8 screw terminals per bar, fifth bullet
    Material
    Brass busbar plates, third bullet
    Plating
    Nickel-plated, for low contact resistance, third bullet
    Cover
    Supplied with a cover, from the title
    Mounting
    Nowhere in the listing
    Pole separation
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    Amazon reference
    B0F6SMQ4P3 (same reference on 6 Amazon marketplaces)
    EAN
    0717504929859
    • A pair, red and black, so both poles are covered in one purchase
    • Eight ring terminals included, plus screw terminals on each bar
    • The mounting is not described

    Best for: A 12 V installation where four heavy feeds leave each pole.

    ≈ £24 / €26
    Check price on Amazon
  • Keltorio 300 A busbar pair in red and black with covers

    Keltorio Pair, 300 A, 12–48 V, M8, 163 mm fixing centres

    A red and black 300 A busbar pair for 12 V to 48 V in rust-free brass with stainless clamps, a flame-retardant nylon base and a dust-proof cover.

    Current rating
    300 A across 12 V to 48 V, from the title
    Studs
    M8, from the title
    Material
    Rust-free brass plates, stainless steel clamps and a flame-retardant nylon base, first bullet
    Plating
    Nowhere in the listing — the brass is described as rust-free rather than plated
    Cover
    A dust-proof plastic cover with insulated rubber nuts protecting the exposed terminals, first and third bullets
    Mounting
    5.5 mm fixing holes at 163 mm centres, fifth bullet — the only busbar here to publish them
    Pole separation
    Supplied as a pair, red and black, from the title
    Amazon reference
    B0GVSN1FH1 (same reference on 5 Amazon marketplaces)
    EAN
    0707191459050
    • The fixing holes and their spacing are published — 5.5 mm at 163 mm centres
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    Best for: An installation where the busbar has to be drilled and bolted to a known panel.

    ≈ €37
    Check price on Amazon

Others on the same shelf

  • REV 25 m black outdoor cable reel on a steel stand

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    A twenty-five metre IP44 outdoor cable reel with four splash-proof sockets rated 3000 W uncoiled, with a thermal switch and restart lock on a steel stand.

    Cable length
    25 m, first bullet
    Cross-section
    H05VV-F 3G1.5 mm², fifth bullet
    Coiled
    Nowhere in the listing — only the uncoiled figure is given
    Uncoiled ratings
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    Thermal cut-out
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    Socket count
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    Ingress rating
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    Amazon reference
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    EAN
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    Best for: Outdoor work where the reel gets fully unwound before anything is plugged in.

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    Cable length
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    Cross-section
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    Coiled
    Not published separately from the uncoiled figure
    Uncoiled ratings
    230 V, 16 A, maximum load 3680 W, first bullet
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    An integrated thermal fuse that switches the sockets off if the cable overheats, third bullet
    Socket count
    Four Schuko sockets, first bullet
    Ingress rating
    IP20 — designed for indoor use, fourth bullet, though the same bullet also names gardens
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    Amazon reference
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    EAN
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    Coiled
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    Ingress rating
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    Amazon reference
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    EAN
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    • A circuit breaker is named, which two of the four reels here do not have
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