FU
Fuse
An overcurrent protective element that interrupts a circuit by melting its fuse link.
SLD / Schematic
Symbols · aM
Motor short-circuit fuse
An aM fuse-link is a partial-range fuse used for motor-circuit short-circuit protection.
SLD / Schematic · aM
What it represents
An aM fuse-link is a partial-range fuse used for motor-circuit short-circuit protection. The drawing must identify the separate overload protective function associated with the motor feeder.
How to read it
- Trace the overload relay as a separate element in the control and trip circuits.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- State aM rating
- Show associated overload protection
- Link motor starting-duty data
A distinction that matters
An aM fuse does not provide the same full-range overload protection as a general-purpose gG fuse.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Fuse and neutral-link symbols
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
Elementary switching devices
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
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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