Generator labels and marking of the panel
Fill in the list of modules, configure rails and print labels for MCBs, RCDs, RCBOs. No registration, exact DIN size 18mm.
Label settings
Widths are calculated for standard (non-compact) devices — for a compact device, set an individual label width.
Print scale — 100%. Self-adhesive A4 paper recommended.
How to create electrical panel labeling: 4 steps
- Add rails. Press «+ Add rail» for each row of DIN rail in the panel. Each rail is a separate strip on the sheet.
- Fill in the modules. For each MCB, RCD or RCBO, specify the line name (e.g., «Kitchen lighting»), device type, rating and phase.
- Customize the appearance. Enable or disable display of type, rating, curve and phase color.
- Print. Press «Print labels». In the printer dialog, select scale 100% — not «fit to page». Use self-adhesive A4 paper.
How to make labels for MCBs in the panel?
Proper marking of modules in the electrical panel is a mandatory requirement of IEC 60364. Labels allow quick identification of the required line during a fault and simplify maintenance.
Standard width of one DIN module is 18mm. A 1P MCB occupies 18mm, 2P — 36mm, 3P — 54mm. The generator automatically calculates the width of each label based on the number of poles.
Phase colors comply with IEC and IEC 60445: L1 — red, L2 — blue, L3 — yellow/brown.
For printing, use self-adhesive A4 paper. Select 100% scale in printer settings (not «fit to page») — this guarantees an exact size of 18mm per module.
Standard label types for panel marking
Proper marking of modules is a requirement of IEC 60364 clause 3.1.6. Here is what is usually indicated on labels in an apartment or house panel:
| Device type | Abbreviation | What to write on the label | Example |
|---|---|---|---|
| Miniature Circuit Breaker | MCB | Circuit name + rating + trip curve | Kitchen lighting · C16 |
| RCD (Residual Current Device) | RCD | Protection zone + rating + leakage current | Bathroom · 25A 30mA |
| RCBO | RCBO | Circuit name + rating + leakage current | Washing machine · C16 30mA |
| Isolator (Disconnector) | QS | Switching zone or "Mains input" | Mains · 2P |
| Contactor | KM | What it switches + coil voltage | Underfloor heating · 3P 230V |
| SPD (Surge Protector) | SPD | Protection level or "SPD" | SPD · Type 2 |
Frequently asked questions about panel labels
What size are labels for DIN rail MCBs?
Standard width of one DIN module is 18mm. 1P MCB = 18mm, 2P = 36mm, 3P = 54mm, 4P = 72mm. Label height is 25mm (standard for most panels).
How to print labels for an electrical panel?
Fill in the module list, configure the rows, and click "Print". The browser will open the print dialog. Self-adhesive A4 paper is recommended. Print scale: 100% (not "fit to page").
Can I make labels for multiple rows at once?
Yes. The generator supports an unlimited number of rows. Each row prints as a separate strip on an A4 sheet.
Are my data saved?
Yes. All entered data is automatically saved in the browser (localStorage). When you visit the page again, your rows and modules will be restored.
Do I need to register?
No. The label generator is completely free and does not require registration. For designing a full panel with automatic calculations, try the ElectroBoard constructor.
What is the difference between "panel marking" and "labels"?
Panel marking is a general term from IEC 60364 meaning any designation of modules: engraving, handwritten notes, or printed labels. Labels are the most convenient way to fulfill the marking requirement. The generator automatically calculates the label size for an 18mm DIN module.
Where can I get a label template for a panel?
This generator is an online template. Fill in the line names, select device types, and click "Print". An A4 sheet with exact 18mm per DIN module is generated without registration.
Design a full-featured panel
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Tools
Related tools
MCB selection by load
Breaker rating and trip curve selection (B/C/D) with coordination and selectivity check.
RCD / RCBO selection
RCD or RCBO type, rating and differential current selection per IEC 60364.
Wire Colors
Wire color marking table per IEC 60445 (formerly IEC 60446). Comparison with legacy and North American standards.