ResourcesDWG symbol librariesCommon 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 October 25, 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.
Sample drawings made with this library
Related symbol libraries
All 71 symbols
71 of 71 symbols
Motor, three-phase
IEC_MOTOR_3PHAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCMotor, single-phase
IEC_MOTOR_1PHAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCGenerator, three-phase
IEC_GENERATOR_3PHAttributes
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCRectifier
IEC_RECTIFIERAttributes
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCInverter
IEC_INVERTERAttributes
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCDC/DC converter
IEC_DC_CONVERTERAttributes
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCFrequency converter
IEC_FREQUENCY_CONVERTERAttributes
TAGPOWER_KWINPUT_VOUTPUT_HZOUTPUT_APROTECTIONSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCPhotovoltaic generator
IEC_PV_GENERATORAttributes
TAGPOWER_KWPVOLTAGECURRENTMODULESSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, slip-ring
IEC_MOTOR_WOUNDAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMROTOR_VSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, stepper
IEC_MOTOR_STEPPERAttributes
TAGTORQUE_NMVOLTAGECURRENTSTEP_ANGLESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, DC, separate field
IEC_MOTOR_DC_SEPAttributes
TAGPOWER_KWVOLTAGECURRENTFIELD_VSPEED_RPMMANUFACTURERPART_NODESCMotor, DC, shunt field
IEC_MOTOR_DC_SHUNTAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, DC, series field
IEC_MOTOR_DC_SERIESAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, single-phase
IEC_GENERATOR_1PHAttributes
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCMotor, synchronous
IEC_MOTOR_SYNCAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCGenerator, synchronous
IEC_GENERATOR_SYNCAttributes
TAGRATING_KVAVOLTAGECURRENTFREQUENCYSPEED_RPMMANUFACTURERPART_NODESCMachine, general symbol
IEC_MACHINEAttributes
TAGPOWER_KWVOLTAGECURRENTTYPESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, linear
IEC_MOTOR_LINEARAttributes
TAGFORCE_NVOLTAGECURRENTSTROKE_MMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, star-connected
IEC_MOTOR_STARAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor with brake
IEC_MOTOR_BRAKEAttributes
TAGPOWER_KWVOLTAGECURRENTBRAKE_VBRAKE_NMMANUFACTURERPART_NODESCVoltage source
IEC_SOURCE_VOLTAGEAttributes
TAGVOLTAGEINTERNAL_OHMSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCCurrent source
IEC_SOURCE_CURRENTAttributes
TAGCURRENTCOMPLIANCE_VSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, single-phase, series
IEC_MOTOR_1PH_SERIESAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCMotor, synchronous, single-phase
IEC_MOTOR_SYNC_1PHAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, synchronous, permanent magnet
IEC_GENERATOR_SYNC_PMAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCGenerator, synchronous, star with neutral
IEC_GENERATOR_SYNC_STAR_NAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCSynchronous converter, three-phase
IEC_CONVERTER_SYNCAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCInduction motor, single-phase, two windings
IEC_MOTOR_INDUCTION_1PH_AUXAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYMANUFACTURERPART_NODESCLinear induction motor, three-phase
IEC_MOTOR_LINEAR_3PHAttributes
TAGPOWER_KWVOLTAGECURRENTSPEED_RPMFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCRectifier, bridge connection
IEC_RECTIFIER_BRIDGEAttributes
TAGTYPEVOLTAGECURRENTPACKAGESTD_CLAUSESTD_REFMANUFACTURERPART_NODESCRectifier/inverter
IEC_RECTIFIER_INVERTERAttributes
TAGPOWER_KWINPUT_VOUTPUT_VOUTPUT_AEFFICIENCY_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCStatic generator
IEC_STATIC_GENERATORAttributes
TAGRATINGMANUFACTURERMODELREMARKSSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCHeat source, combustion
IEC_HEAT_SOURCE_COMBUSTIONAttributes
POWERFUELMANUFACTURERMODELREMARKSSTD_CLAUSESTD_REFDESCFan, in housing
IEC_FAN_IN_HOUSINGAttributes
TAGFLOW_M3HMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESCPump, in housing
IEC_PUMP_IN_HOUSINGAttributes
TAGFLOW_M3HMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESCTransformer (circles)
IEC_TRANSFORMERAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCTransformer (windings)
IEC_TRANSFORMER_WINDINGSAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCAutotransformer
IEC_AUTOTRANSFORMERAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VFREQUENCYTAPMANUFACTURERPART_NODESCTransformer, three windings
IEC_TRANSFORMER_3WAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VTERTIARY_VVECTOR_GROUPFREQUENCYSTD_CLAUSESTD_REFMANUFACTURERPART_NODESCTransformer, tap changer
IEC_TRANSFORMER_TAPSAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VTAP_RANGEVECTOR_GROUPIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, star-delta
IEC_TRANSFORMER_YDAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, delta-star
IEC_TRANSFORMER_DYAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, star-star
IEC_TRANSFORMER_YYAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, screened
IEC_TRANSFORMER_ISOLATINGAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VFREQUENCYPROTECTIONMANUFACTURERPART_NODESCCurrent transformer
IEC_CTAttributes
TAGRATIOACCURACY_CLASSBURDEN_VASECONDARY_AMANUFACTURERPART_NODESCCurrent transformer, 2 cores
IEC_CT_2COREAttributes
TAGRATIOCORE1CORE2SECONDARY_AMANUFACTURERPART_NODESCTransformer, 3-phase, star-delta
IEC_TRANSFORMER_3PH_STAR_DELTAAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-star
IEC_TRANSFORMER_3PH_STAR_STARAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-zigzag
IEC_TRANSFORMER_3PH_STAR_ZIGAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, tap changer
IEC_TRANSFORMER_3PH_TAP_CHANGERAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, four taps
IEC_TRANSFORMER_3PH_TAPS_4Attributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer bank, 1-phase units, star-delta
IEC_TRANSFORMER_BANK_STAR_DELTAAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCTransformer, 3-phase, star-star-delta
IEC_TRANSFORMER_3W_STAR_STAR_DELTAAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, single-phase
IEC_AUTOTRANSFORMER_CIRCLEAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, 3-phase, star
IEC_AUTOTRANSFORMER_3PH_STARAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCAutotransformer, voltage regulation
IEC_AUTOTRANSFORMER_REGULATEDAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCInduction regulator, 3-phase
IEC_INDUCTION_REGULATORAttributes
TAGRATING_KVAPRIMARY_VSECONDARY_VVECTOR_GROUPFREQUENCYIMPEDANCE_PCTMANUFACTURERPART_NODESCPulse transformer
IEC_PULSE_TRANSFORMERAttributes
TAGRATIOPULSE_WIDTHMANUFACTURERMODELREMARKSMANUFACTURERPART_NODESC
Missing a symbol? Tell us which one.
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 · October 25, 2026
The dimmer symbol now follows the IEC 60617 drawing: the switch stroke runs through the triangle.















































































