Line inside a circle (on/off push button)
An on/off push-push control: pressing it connects the equipment to the mains, pressing again disconnects it. Each position, on and off, is stable.
Symbol reference: IEC 60417-5010
A mark tells you what the maker declares, never that the product is safe.
- What it looks like
- A short vertical line entirely inside a closed circle.
- Who may apply it
- The equipment maker, on a push-push mains switch whose on and off positions are both stable.
What it does not promise
It is easy to confuse with the standby symbol, the broken circle with the line poking out. Only this closed-circle version means a real on/off. If in doubt, the manual says which one the button is.
Other marks with the same shapes
Sources
Each page below was fetched and read on the date shown. Where a symbol’s IEC 60417 or ISO 7000 number is given, a public page listing that number is among them.
- Wikimedia Commons: File page transcribing IEC 60417 entry 5010 (title, function) — Symbol 5010 from IEC 60417, “ON”/“OFF” (push-push): to indicate connection to or disconnection from the mains; each position, “ON” or “OFF”, is a stable position. Checked 2026-09-24.
- Wikipedia: Power symbol — “IEC 60417-5010, the power on-off symbol (line within a circle), is used on buttons that switch a device between on and fully off states.” Checked 2026-09-24.
Written in our own words; quotations are the sources’ wording.