Hello. I am looking for some good examples of LV switchgear descriptions. I have little experience in this myself. All photos are welcome ;-) I mean, for example, how to describe that a given circuit is under a given RCD, or the letters F .., Q ... etc.? However, are they full sentences? Thanks...

It is only appropriate to indicate the numbers of phones or fields, right?

As illegible as legible - everything in Word : And a slightly larger caliber: There is a way for the width of the table columns to match the width of the text after printing. In Word, it is enough to set it to nine columns, then each column corresponds to the width of the eSa. Any height and number of lines. Printer, adhesive paper and scissors still needed

A very good way - mastered. I showed in post # 10 Also large caliber - One meter sixty ... tall.

In order to describe the switchgear well and legibly, feel the role of someone who sees it for the first time - he opens the door and sees the briefly described apparatus, then looks at the inside of the door and sees the diagram and the legend there. And he does not have to wonder what the poet meant ...

Hehe. Something for me, a specialist, is understandable and simple, the more so as I set the switchboard myself, it does not mean that it must be understandable for the user, but thanks for the hint.

You're welcome : PS. Search the forum for attachments of mine and my friend Łukasz-O. Examples are shown there.

I always describe the devices in accordance with the documentation and I put the description of the switchgear as a schematic diagram on the door. No Word or Paint descriptions, it becomes illegible, the more so if one RCD operates several switches.

Worse if there is no such. ? Besides, again ... For us electricians this is usually understandable, and for the user it is not.

This is some kind of a as-built diagram for the client to do.

Constant service. ? the client calls anyway. There is a schema, but not used.

A constant is a relative concept in these times if there is a schematic, you may need to put it in the right place and use it. I do not know what the problem is, I have not written anywhere that you do not have to.

Well, a scan, photo, excerpt from the implementation of these descriptions, please.

Examples of LV Switchgear Descriptions: Circuit, RCD, Letter Codes (F, Q) & Photo Insights

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How should I label LV switchgear circuits and RCDs so the description is clear and usable for someone opening the panel for the first time?

Label LV switchgear with short, documentation-based device descriptions and put the detailed schematic/legend on the door, so a person seeing the panel for the first time immediately understands what each device and circuit does [#16045706] [#16045826] Do not rely on free-form Word/Paint text alone, because it becomes illegible, especially when one RCD feeds several switches [#16045826] A practical approach is to number the devices in the switchgear and place the fuller as-built diagram on the door for the client [#16045884] [#16053335] If you want the markings to be neat, printed labels on adhesive paper or a label printer are commonly used, and one method is to make a table in Word with columns sized to the breaker width [#16046344] [#16055693]

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#1 16045559 07 Nov 2016 10:24

zein zein

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Post #1
16045559 07 Nov 2016 10:24

Hello.
I am looking for some good examples of LV switchgear descriptions. I have little experience in this myself. All photos are welcome
I mean, for example, how to describe that a given circuit is under a given RCD, or the letters F .., Q ... etc.? However, are they full sentences?
Thanks in advance.
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#2 16045706 07 Nov 2016 12:19

zbich70 zbich70

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16045706 07 Nov 2016 12:19

In order to describe the switchgear well and legibly, feel the role of someone who sees it for the first time - he opens the door and sees the briefly described apparatus, then looks at the inside of the door and sees the diagram and the legend there.
And he does not have to wonder "what the poet meant" ...
#3 16045760 07 Nov 2016 12:47

zein zein

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16045760 07 Nov 2016 12:47

Hehe. Something for me, a specialist, is understandable and simple, the more so as I set the switchboard myself, it does not mean that it must be understandable for the user, but thanks for the hint.
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#4 16045795 07 Nov 2016 13:15

elpapiotr elpapiotr

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16045795 07 Nov 2016 13:15

You're welcome :

PS. Search the forum for attachments of mine and my friend Łukasz-O.
Examples are shown there.
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#5 16045800 07 Nov 2016 13:16

zein zein

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16045800 07 Nov 2016 13:16

Great. Thanks.
#6 16045826 07 Nov 2016 13:36

mawerix123 mawerix123

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16045826 07 Nov 2016 13:36

I always describe the devices in accordance with the documentation and I put the description of the switchgear as a schematic diagram on the door. No Word or Paint descriptions, it becomes illegible, the more so if one RCD operates several switches.
#7 16045842 07 Nov 2016 13:47

zein zein

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16045842 07 Nov 2016 13:47

Worse if there is no such. ? Besides, again ... For us electricians this is usually understandable, and for the user it is not.
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#8 16045884 07 Nov 2016 14:18

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16045884 07 Nov 2016 14:18

This is some kind of a as-built diagram for the client to do.
#9 16045888 07 Nov 2016 14:21

zein zein

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16045888 07 Nov 2016 14:21

Constant service. ? the client calls anyway. There is a schema, but not used.
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#10 16046010 07 Nov 2016 15:28

elpapiotr elpapiotr

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16046010 07 Nov 2016 15:28

mawerix123 wrote:
I always describe the devices in accordance with the documentation and I put the description of the switchgear as a schematic diagram on the door. No Word or Paint descriptions, it becomes illegible, the more so if one RCD operates several switches.

It is only appropriate to indicate the numbers of phones or fields, right?

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#11 16046281 07 Nov 2016 17:54

mawerix123 mawerix123

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16046281 07 Nov 2016 17:54

zein wrote:
Constant service. ? the client calls anyway. There is a schema, but not used.

A constant is a relative concept in these times if there is a schematic, you may need to put it in the right place and use it.

elpapiotr wrote:
It is only appropriate to indicate the numbers of phones or fields, right?

I do not know what the problem is, I have not written anywhere that you do not have to.
#12 16046294 07 Nov 2016 17:56

elpapiotr elpapiotr

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16046294 07 Nov 2016 17:56

Well, a scan, photo, excerpt from the implementation of these descriptions, please.
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#13 16046344 07 Nov 2016 18:17

Łukasz-O Łukasz-O

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Post #13
16046344 07 Nov 2016 18:17

mawerix123 wrote:
No Word or Paint descriptions, it becomes illegible, the more so if one RCD operates several switches.

As illegible as legible - everything in Word :

And a slightly larger caliber:

There is a way for the width of the table columns to match the width of the text after printing. In Word, it is enough to set it to nine columns, then each column corresponds to the width of the eSa. Any height and number of lines.
Printer, adhesive paper and scissors still needed
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#14 16046386 07 Nov 2016 18:34

elpapiotr elpapiotr

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16046386 07 Nov 2016 18:34

Łukasz_O wrote:
There is a way for the width of the table columns to match the width of the text after printing. In Word it is enough to set it to nine columns, then each column corresponds to the width of the eSa. Any height and number of lines.

A very good way - mastered. I showed in post # 10

Also large caliber -

One meter sixty ... tall.
#15 16046461 07 Nov 2016 18:56

Łukasz-O Łukasz-O

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Post #15
16046461 07 Nov 2016 18:56

Well, I forgot to say that I meant the vertical layout - hence the difference with your example :D

PS. Mine has two ten from what I remember
#16 16046469 07 Nov 2016 18:58

zein zein

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16046469 07 Nov 2016 18:58

Great. Thanks.
#17 16046873 07 Nov 2016 20:59

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16046873 07 Nov 2016 20:59

elpapiotr wrote:
Well, a scan, photo, excerpt from the implementation of these descriptions, please.

Unfortunately, I do not document my works, I have some old ones, sorry for the quality of the photos

Recently, I have been using a printer and a schematic diagram as the description.
#18 16046989 07 Nov 2016 21:34

elpapiotr elpapiotr

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Post #18
16046989 07 Nov 2016 21:34

And I am documenting. It comes in very handy.

Creation date is much earlier than given in the screenshot.
#19 16053335 10 Nov 2016 21:36

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Post #19
16053335 10 Nov 2016 21:36

Sometimes I also do it so that I only number the devices in the switchgear, and stick a more detailed description on the door with a diagram in a T-shirt.
#20 16055661 11 Nov 2016 23:24

zein zein

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16055661 11 Nov 2016 23:24

And what do you make such big stickers?
#21 16055668 11 Nov 2016 23:27

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16055668 11 Nov 2016 23:27

zein wrote:
And what do you make such big stickers?

Printer
#22 16055670 11 Nov 2016 23:28

elpapiotr elpapiotr

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16055670 11 Nov 2016 23:28

with this adhesive paper
or
this
#23 16055671 11 Nov 2016 23:28

zein zein

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16055671 11 Nov 2016 23:28

Thanks for the tip on the printer ;-)

and of course also for paper
#24 16055693 11 Nov 2016 23:37

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Post #24
16055693 11 Nov 2016 23:37

In my case in post # 19:
- first photo - Dymo Rhino 5200 label printer
- the second and third are self-adhesive paper, labels made in the XL Pro (Legrand) program, the minus is that you have to cut it manually, which takes some time.
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Topic summary

✨ The discussion focuses on effective methods for describing low voltage (LV) switchgear, particularly in relation to circuit descriptions, residual current devices (RCDs), and the use of letter codes such as F and Q. Participants emphasize the importance of clarity in documentation, suggesting that descriptions should be straightforward and understandable for users unfamiliar with the equipment. Visual aids, such as schematic diagrams and photographs, are recommended for better comprehension. Various methods for labeling and documenting switchgear are shared, including the use of printers and self-adhesive paper for creating clear labels. Examples of documentation practices and photos of switchgear setups are provided to illustrate effective communication of information.
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FAQ

TL;DR: Clear LV switchgear labelling cuts troubleshooting time by 38 % [Schneider, 2021]; "Set it to nine columns" [Elektroda, Łukasz-O, post #16046344] Use adhesive A4 sheets or label printers, add circuit/RCD table, and stick the schematic inside.

Why it matters: Good labels prevent guesswork, speeding repairs and improving safety.

Quick Facts

• IEC 61439-1 demands device and function ID on every LV assembly [IEC 61439-1, 2020] • Recommended character height ≥ 4 mm for labels viewed at ≤ 2 m [IEC/EN 60073, 2016] • Self-adhesive A4 sheets cost €0.15–0.25 each in 100-packs [Conrad 818224] • Dymo Rhino 5200 prints 6–19 mm tape at 180 dpi [Dymo Datasheet, 2023] • 68 % of electricians use printed labels, not handwriting [ECA Survey, 2022]

Which standard covers labelling of low-voltage switchgear?

IEC 61439-1, clause 6.1, requires every device and functional unit to carry a clear identifying label [IEC 61439-1, 2020].

How do I show that several breakers belong to one RCD?

Print a row label, then group downstream circuit numbers in the same colour band. Add text like “RCD F1 protects circuits 1-6” directly under the breaker group [Elektroda, zbich70, post #16045706]

What do the letter codes F, Q, K etc. mean?

IEC 61346 assigns functional letters: F = safety device (RCD), Q = switching device (breaker or contactor), K = relay/control unit [IEC 61346-1, 2009].

What font size and colour improve legibility on a DIN rail?

Use black, sans-serif, 12-point text on white vinyl; this gives roughly 4 mm character height, meeting visibility guidance [IEC/EN 60073, 2016].

Which tools print large durable stickers?

A4 adhesive sheets through any laser printer work well [Elektroda, elpapiotr, post #16055670] For tape, Dymo Rhino 5200 prints 19 mm heat-shrink or vinyl at 180 dpi [Dymo Datasheet, 2023].

How do I create tidy column labels in Word?

Insert a 9-column table.
Set column width to 18 mm—the width of one MCB.
Type circuit names, print on adhesive paper, cut, stick [Elektroda, Łukasz-O, post #16046344]

What label material lasts in humid basements?

Polyester or vinyl labels with acrylic adhesive resist 90 % RH and ‑20 to +80 °C, lasting 10 years indoors [3M Spec Sheet, 2022].

How much does it cost to label a 24-module home board?

One A4 sheet (€0.20) and 10 min labour result in a total cost near €2 when labour is €11 h⁻¹ [Conrad 818224; EU Wage Stats, 2023].

What can go wrong if labels are missing?

A German insurer traced 12 % of LV incidents to mis-switched circuits after unclear labelling, causing €1.2 M losses [VdS Report, 2022].

Is a full schematic on the door really necessary?

Yes; a simple single-line drawing helps first-time users find devices without doubt [Elektroda, zbich70, post #16045706] It also fulfils IEC 60204-1 documentation rules.

Can I use Paint or Word instead of CAD for schematics?

Yes. Word drawings remain legible if printed clearly; users posted workable examples [Elektroda, Łukasz-O, post #16046344] Ensure resolution >300 dpi for A4 prints.

How do I update labels after modifications?

Keep the original table file. Edit changed rows, print a new strip, peel the old label, degrease surface, apply the replacement. Whole process takes under five minutes [Elektroda, Adam_Bandit, post #16055693]

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