What ⏛ means
It marks a fuse in an electrical circuit diagram. A fuse opens the circuit when excessive current makes its fusible element fail. The fuse symbol in an electrical schematic identifies where that overcurrent protection sits.
The International Electrotechnical Commission (IEC) records that work to coordinate electrical symbols across borders was underway by 1910; by 1920, an international committee was comparing national practices. The practical aim was to make engineering drawings readable across countries.
A 2019 snapshot of the IEC symbol database lists a general fuse alongside striker fuses with mechanical indicators, alarm contacts that signal fuse operation, and fuse-switch or fuse-disconnector devices. Unicode describes ⏛ as a compatibility-oriented electrotechnical character associated with HKSCS-2001, the 2001 Hong Kong Supplementary Character Set.
Technical and niche: it belongs in circuit diagrams and engineering documentation, not casual chat.
Fuse drawings vary by standard; use the convention specified for the schematic, since ⏛ is not a universal template.
Part of the collection
Questions people ask
1Why does ⏛ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
10
Collections with ⏛
1
How to type or find ⏛
- Search it as
- fuse symbol · electrical schematic · circuit diagram · IEC · overcurrent protection
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.