Board
Switchboard
A distribution assembly represented by a generic envelope in an arrangement drawing.
GA objects
GA objects · MCCB
Moulded-case circuit breaker
A moulded-case breaker combines circuit switching and overcurrent protection in an insulated case.
GA / SLD · MCCB
What it represents
A moulded-case breaker combines circuit switching and overcurrent protection in an insulated case.
Locate terminals and operating handle; account for side accessories and any rotary handle or door coupling. The GA locates the physical item; the associated schematic or equipment schedule records its electrical interfaces.
The preview is independent educational geometry and is not a manufacturer outline, fabrication drawing or verified standard graphic. Obtain the applicable model drawing from the cited official source before making a dimensional layout.
How to read it
- Locate terminals and operating handle; account for side accessories and any rotary handle or door coupling.
- Frame size, trip setting and interrupting capacity are separate attributes and cannot be read from a rectangle.
Information to show or reference
- Confirm the exact equipment identity, drawing revision and installation orientation.
- Locate terminals and operating handle; account for side accessories and any rotary handle or door coupling.
- Cross-reference the terminals, cable routes and service tasks with the equipment schedule.
A distinction that matters
Frame size, trip setting and interrupting capacity are separate attributes and cannot be read from a rectangle.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Distribution and control: official CAD data
Public manufacturer or design reference relevant to this equipment class.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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