Draw-out circuit breaker symbol
Also called Withdrawable breaker, Racked breaker
A circuit breaker on a truck that racks out of the switchgear, which isolates it and lets it be removed for maintenance.
What the draw-out circuit breaker symbol means
A circuit breaker on a truck that racks out of the switchgear, which isolates it and lets it be removed for maintenance.
ANSI and IEC symbols
The breaker square with a chevron on each side, showing the disconnecting contacts.
ANSI SVGWhere you see it
Medium voltage switchgear and large low voltage power circuit breakers.
What is written next to it
On a one-line, the draw-out circuit breaker carries its tag and its ratings: rated voltage and current and breaking current in kA.
What gets checked at commissioning
Before the draw-out circuit breaker is energised, the test records usually cover: the breaker tests plus racking in and out, shutters, the test position and the interlocks between them. Each check is recorded against the tag, so the system can be handed over with its evidence. See commissioning software.
ANSI device numbers
Protective functions you will often find with a draw-out circuit breaker:
- 52 AC circuit breaker
See the full list of ANSI device numbers with their IEC equivalents.
Related symbols
Frequently asked questions
What does the draw-out circuit breaker symbol look like?
On ANSI drawings: The breaker square with a chevron on each side, showing the disconnecting contacts. In IEC 60617: The IEC breaker with chevrons for the plug-in contacts on each side.
Is the draw-out circuit breaker symbol the same in IEC and ANSI?
No. The IEC breaker with chevrons for the plug-in contacts on each side. The IEC 60617 number is S00287.
Where is a draw-out circuit breaker used?
Medium voltage switchgear and large low voltage power circuit breakers.
Which ANSI device numbers go with a draw-out circuit breaker?
52 AC circuit breaker.
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