{"schemaVersion":1,"slug":"motor","name":"Three-phase motor","kind":"symbol","abbreviation":"M","aliases":["electric motor","3 phase motor","motor load","HMO13","VMO13"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","IEEE / ANSI"],"summary":"An electrical motor load connected to its switching and protective equipment.","description":["A motor representation identifies an electrical machine operating as a load in the stated system arrangement. Connection count, motor type and additional winding or rotor detail can change the representation. Its nameplate and equipment schedule provide the selected machine data.","The SLD places the motor and its feeder equipment. A schematic shows the controller, coil supply, protection interfaces and auxiliary functions. A simple circle and motor label do not establish a complete motor-starting or protective arrangement."],"readingNotes":["Follow the feeder back to its switching and protective devices.","Read the documented motor connection and starting arrangement."],"drawingChecklist":["Reference motor rating and connection data.","Identify the starter or control arrangement.","Cross-reference auxiliary and protection circuits."],"distinction":"A contactor switches the motor circuit. Motor protection and short-circuit interruption may be provided by additional specified equipment.","facts":[{"label":"Representation","value":"Electrical machine load"},{"label":"Connection detail","value":"Motor-specific"},{"label":"Feeder equipment","value":"Separate switching and protection"},{"label":"Public Autodesk reference names","value":"HMO13, VMO13 (vendor identifiers, not IEC symbol IDs)"}],"references":[{"sourceId":"autodesk-motors","relevance":"Public three-phase motor variants."},{"sourceId":"switching-devices","relevance":"Manufacturer description of contactor and protective roles."}],"related":["contactor","circuit-breaker","49-thermal-protection","relay-coil"],"artwork":"motor","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/motor","illustration":{"url":"https://eloragrid.ai/library/illustrations/motor.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-motors","title":"Three-phase motor symbol variants","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-385CBE83-33A3-4314-913E-3B59A6D05F22.htm","type":"cad-reference","scope":"Motor variants including asynchronous, synchronous and connection-count differences.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public three-phase motor variants."},{"id":"switching-devices","title":"Elementary switching devices","publisher":"Schneider Electric — Electrical Installation Guide","url":"https://www.electrical-installation.org/enwiki/Elementary_switching_devices","type":"manufacturer","scope":"Explains disconnectors, load-break switches, contactors and fuses. The manufacturer diagrams remain at the source.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Manufacturer description of contactor and protective roles."}]}