RecursosBibliotecas de símbolos DWGCommon electrical symbols (IEC 60617)
Machines and transformers
Common electrical symbols (IEC 60617): Machines and transformers: 71 ready-made AutoCAD blocks (DWG), free to download and use in your own projects, as a ZIP or one symbol at a time.
71 blocks: motors, generators and converters, DC, single-phase and three-phase machines, brushes, winding connection marks, rectifiers, inverters, cells and batteries, transformers, three-phase transformers in star, delta and zigzag, tap changers, autotransformers, instrument transformers and induction regulators.
Version 1.1 · updated 25 de outubro de 2026 · Check out what's changed
Using AutoCAD 2017 or an earlier version? Download the 2010 format
Free to use and modify in your own projects, including commercial ones. The ZIP holds one plain DWG file in AutoCAD 2018 format and a README; no add-in needed. Provided as is, without warranty.
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All 71 symbols
71 de 71 símbolos
Motor, three-phase
IEC_MOTOR_3PHAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCMotor, single-phase
IEC_MOTOR_1PHAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCGenerator, three-phase
IEC_GENERATOR_3PHAtributos
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCRectifier
IEC_RECTIFIERAtributos
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCInverter
IEC_INVERTERAtributos
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCDC/DC converter
IEC_DC_CONVERTERAtributos
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCFrequency converter
IEC_FREQUENCY_CONVERTERAtributos
TAGPOWER_KWINPUT_VOUTPUT_HZOUTPUT_APROTECTIONSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCPhotovoltaic generator
IEC_PV_GENERATORAtributos
TAGPOWER_KWPVOLTAGECURRENTMODULESSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, slip-ring
IEC_MOTOR_WOUNDAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMROTOR_VSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, stepper
IEC_MOTOR_STEPPERAtributos
TAGTORQUE_NMVOLTAGECURRENTSTEP_ANGLESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, DC, separate field
IEC_MOTOR_DC_SEPAtributos
TAGPOWER_KWVOLTAGECURRENTFIELD_VSPEED_RPMMANUFACTURERPART_NODESCMotor, DC, shunt field
IEC_MOTOR_DC_SHUNTAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, DC, series field
IEC_MOTOR_DC_SERIESAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, single-phase
IEC_GENERATOR_1PHAtributos
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCMotor, synchronous
IEC_MOTOR_SYNCAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCGenerator, synchronous
IEC_GENERATOR_SYNCAtributos
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCMachine, general symbol
IEC_MACHINEAtributos
TAGPOWER_KWVOLTAGECURRENTTYPESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, linear
IEC_MOTOR_LINEARAtributos
TAGFORCE_NVOLTAGECURRENTSTROKE_MMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, star-connected
IEC_MOTOR_STARAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor with brake
IEC_MOTOR_BRAKEAtributos
TAGPOWER_KWVOLTAGECURRENTBRAKE_VBRAKE_NMMANUFACTURERPART_NODESCVoltage source
IEC_SOURCE_VOLTAGEAtributos
TAGVOLTAGEINTERNAL_OHMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCCurrent source
IEC_SOURCE_CURRENTAtributos
TAGCURRENTCOMPLIANCE_VSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, single-phase, series
IEC_MOTOR_1PH_SERIESAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, synchronous, single-phase
IEC_MOTOR_SYNC_1PHAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, synchronous, permanent magnet
IEC_GENERATOR_SYNC_PMAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, synchronous, star with neutral
IEC_GENERATOR_SYNC_STAR_NAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCSynchronous converter, three-phase
IEC_CONVERTER_SYNCAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCInduction motor, single-phase, two windings
IEC_MOTOR_INDUCTION_1PH_AUXAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCLinear induction motor, three-phase
IEC_MOTOR_LINEAR_3PHAtributos
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCRectifier, bridge connection
IEC_RECTIFIER_BRIDGEAtributos
TAGTYPEVOLTAGECURRENTPACKAGESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCRectifier/inverter
IEC_RECTIFIER_INVERTERAtributos
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCStatic generator
IEC_STATIC_GENERATORAtributos
TAGRATINGMANUFACTURERMODELREMARKSSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCHeat source, combustion
IEC_HEAT_SOURCE_COMBUSTIONAtributos
POWERFUELMANUFACTURERMODELREMARKSSTD_CLAUSESTD_REFDESCFan, in housing
IEC_FAN_IN_HOUSINGAtributos
TAGFLOW_M3HMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESCPump, in housing
IEC_PUMP_IN_HOUSINGAtributos
TAGFLOW_M3HMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESCTransformer (circles)
IEC_TRANSFORMERAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCTransformer (windings)
IEC_TRANSFORMER_WINDINGSAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCAutotransformer
IEC_AUTOTRANSFORMERAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VFREQUENCYTAPMANUFACTURERPART_NODESCTransformer, three windings
IEC_TRANSFORMER_3WAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VTERTIARY_VVECTOR_GROUPFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCTransformer, tap changer
IEC_TRANSFORMER_TAPSAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VTAP_RANGEVECTOR_GROUPIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, star-delta
IEC_TRANSFORMER_YDAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, delta-star
IEC_TRANSFORMER_DYAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, star-star
IEC_TRANSFORMER_YYAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, screened
IEC_TRANSFORMER_ISOLATINGAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VFREQUENCYPROTECTIONMANUFACTURERPART_NODESCCurrent transformer, 2 cores
IEC_CT_2COREAtributos
TAGRATIOCORE1CORE2SECONDARY_AMANUFACTURERPART_NODESCTransformer, 3-phase, star-delta
IEC_TRANSFORMER_3PH_STAR_DELTAAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-star
IEC_TRANSFORMER_3PH_STAR_STARAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-zigzag
IEC_TRANSFORMER_3PH_STAR_ZIGAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, tap changer
IEC_TRANSFORMER_3PH_TAP_CHANGERAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, four taps
IEC_TRANSFORMER_3PH_TAPS_4Atributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer bank, 1-phase units, star-delta
IEC_TRANSFORMER_BANK_STAR_DELTAAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-star-delta
IEC_TRANSFORMER_3W_STAR_STAR_DELTAAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, single-phase
IEC_AUTOTRANSFORMER_CIRCLEAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, 3-phase, star
IEC_AUTOTRANSFORMER_3PH_STARAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, voltage regulation
IEC_AUTOTRANSFORMER_REGULATEDAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCInduction regulator, 3-phase
IEC_INDUCTION_REGULATORAtributos
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCPulse transformer
IEC_PULSE_TRANSFORMERAtributos
TAGRATIOPULSE_WIDTHMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESC
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Attributes for parts lists
Every block has a visible TAG attribute and the key parameter next to the symbol: the resistance of a resistor, the rated current of a breaker, the type of a transistor, the rated power of a motor. The other parameters (voltage, tolerance, breaking capacity, speed, frequency, contact numbers and so on) are attributes that do not show on the sheet.
Nearly all blocks also have MANUFACTURER and PART_NO, and every block has a DESC attribute holding the name of the symbol. Fill them in with the attribute editor, or export them from many drawings to Excel for a bill of materials and write the changes back with BlockSync. Many symbols also carry the entry number of IEC 60617 (STD_CLAUSE, for example 07-13-06) and the number in the standard's database (STD_REF, for example S00288) as invisible attributes, so a symbol can be found in the standard and listed in a schedule.
How to use the library
- Unzip the file and open the DWG. Copy the symbols you need into your drawing, or drag the blocks in from DesignCenter (ADCENTER).
- Insert a block and snap to the 5 mm grid. The insertion point is terminal 1, so the symbol lands exactly on the end of the wire.
- Fill in the tag, then double-click the block (or run EATTEDIT) to enter the rating, the type and the part number.
- To count symbols or list the attributes of many drawings, export the blocks to Excel with BlockSync and write corrected values back.
What changed in each version
Version 1.1 · 25 de outubro de 2026
The dimmer symbol now follows the IEC 60617 drawing: the switch stroke runs through the triangle.









































































