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Two dimensional standards, and no reset

Sun3drucker Single-phase 5(80) A, two-pole, DIN EN 50022 and DIN 43880

A single-phase two-pole DIN rail kWh meter rated 5(80) A with a backlit LCD, no reset function, and a reading retained through a power cut.

Sun3drucker single-phase DIN rail kWh meter with a backlit LCD

Sun3drucker Single-phase 5(80) A, two-pole, DIN EN 50022 and DIN 43880

A single-phase two-pole DIN rail kWh meter rated 5(80) A with a backlit LCD, no reset function, and a reading retained through a power cut.

Maximum current
5(80) A, from the title — a basic current of 5 A with a maximum of 80 A
Direct or CT measurement
Direct
Phases
Single phase, two poles, from the title
Accuracy class
Nowhere in the listing — high precision is claimed in the fifth bullet without a class
Protocol
Nowhere in the listing
Width
17.5 mm pole width to DIN 43880, second bullet; 35 mm rail mounting to DIN EN 50022
Reset behaviour
No reset function at all, first bullet; the reading is retained in memory after a power cut. Working range −25 °C to 55 °C, up to 95 % relative humidity
Amazon reference
B083GYP8JS (same reference on 6 Amazon marketplaces)
EAN
0795787227480
  • Two dimensional standards cited — DIN EN 50022 for the rail and DIN 43880 for the module width
  • The reading survives a power cut and cannot be reset, which is what a billing sub-meter needs
  • No accuracy class

Best for: A sub-meter whose reading has to be trusted over years rather than watched daily.

≈ €14
Check price on Amazon

Specifications

Maximum current
5(80) A, from the title — a basic current of 5 A with a maximum of 80 A
Direct or CT measurement
Direct
Phases
Single phase, two poles, from the title
Accuracy class
Nowhere in the listing — high precision is claimed in the fifth bullet without a class
Protocol
Nowhere in the listing
Width
17.5 mm pole width to DIN 43880, second bullet; 35 mm rail mounting to DIN EN 50022
Reset behaviour
No reset function at all, first bullet; the reading is retained in memory after a power cut. Working range −25 °C to 55 °C, up to 95 % relative humidity
Amazon reference
B083GYP8JS (same reference on 6 Amazon marketplaces)
EAN
0795787227480

A meter that only counts upward.

No reset, by design

The first bullet says it plainly: no reset function. The reading survives a power cut in memory and there is no way to clear it.

For a sub-meter used to divide a bill between a tenant and a landlord, that is not a limitation, it is the requirement. For watching a circuit day by day it is the wrong tool.

Two dimensional standards

DIN EN 50022 for the 35 mm rail. DIN 43880 for the 17.5 mm pole width. Citing both means the meter will physically fit a consumer unit built to European convention, which is a different assurance from the electrical one.

The environment

−25 °C to 55 °C, up to 95 % relative humidity. Published at both ends, which suits an unheated meter cupboard or a garage.

What is absent

An accuracy class. High precision is claimed in the fifth bullet, which is an adjective.

And any output. No S0, no protocol, nothing — this meter is read with your eyes.

Availability

German, French, Italian and Spanish Amazon stores quoted 14 € to 19 € when this page was compiled.

British Amazon store carries it too, priced in its own currency, which the euro range above deliberately omits.

American Amazon catalogue carries an entry for it, with nobody selling.

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 DIN rail energy meters

  • B+G E-Tech three-phase DIN rail meter with a blue backlit display

    B+G E-Tech FLDS100-DR three-phase, 100 A, 3.9 modules, resettable day counter, S0

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    Maximum current
    100 A, from the title
    Direct or CT measurement
    Direct
    Phases
    Three phase, from the title
    Accuracy class
    Nowhere in the listing
    Protocol
    S0 output, from the title; no pulse rate is published
    Width
    3.9 modules, from the title — published as a module count, which only this meter and the EASTRON do
    Reset behaviour
    A freely resettable day counter alongside the running total, third bullet; a load indicator shows consumption in real time, first bullet
    Amazon reference
    B0GL81CZ9Z (same reference on 5 Amazon marketplaces)
    EAN
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    • A resettable day counter as well as a total, which is what makes a meter useful for an experiment
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    • No accuracy class and no MID approval, at a price close to the two meters that have it

    Best for: Working out what a circuit actually uses, day by day, before deciding anything.

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    Maximum current
    100 A, from the title
    Direct or CT measurement
    Direct
    Phases
    Three phase, four wire, from the title
    Accuracy class
    Absent — CE certification is stated in the first bullet and high accuracy is claimed, neither of which is a class
    Protocol
    Nowhere in the listing
    Width
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    Reset behaviour
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    Amazon reference
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    EAN
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    • A transparent insulating case, so the terminals can be inspected without opening anything
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    Best for: A three-phase board where the meter should be visible as well as readable.

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    Check price on Amazon
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    A MID certified three-phase four-wire DIN rail energy meter to 100 A with a backlit LCD in a four-module case, for sub-metering individual circuits.

    Maximum current
    100 A, from the title
    Direct or CT measurement
    Direct
    Phases
    Three phase, four wire, first bullet
    Accuracy class
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    Protocol
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    Width
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    Reset behaviour
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    EAN
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    Best for: Putting a defensible number on one circuit in a three-phase board.

    ≈ £52 / €50
    Check price on Amazon

Others on the same shelf

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    Capacity
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    Approval marks
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    Static behaviour
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    Sealing
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    Amazon reference
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    EAN
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    Capacity
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    Approval marks
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    Material
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    Static behaviour
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    EAN
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    Ratchet
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    EAN
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    Check price on Amazon

All DIN rail energy meters