IEC symbol forms

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Single power receptacleHCN1RSGL · Schematic Single-core cable sealing endSE · SLD / Schematic Single-phase AC motorM 1PH AC · SLD / Schematic Single-phase AC sourceAC 1PH · SLD / Schematic Single-phase AC-to-DC current converterHIN1G1 · Schematic Single-phase autotransformerAT 1PH · SLD / Schematic Single-phase bridge rectifierBR 1PH · Schematic Single-phase motor with fanM 1PH FAN · SLD / Schematic Single-phase series-connected AC motorHMO1M10 · SLD / Schematic Single-phase synchronous generatorG 1~ · SLD / Schematic Single-phase synchronous motorHMO1M16 · SLD / Schematic Single-phase two-winding transformerTX 1PH · SLD / Schematic Single-pole circuit breakerCB 1P · SLD / Schematic Single-tuned harmonic filterHF · SLD / Schematic Six-phase double-delta winding connectionQ060210 · SLD / Schematic Six-phase double-zigzag winding connectionQ060213 · SLD / Schematic Six-phase polygon winding connectionQ060211 · SLD / Schematic Six-phase star winding connectionQ060212 · SLD / Schematic Six-pole asynchronous motorHMO1M11 · SLD / Schematic Smoke detector plan symbolSD · GA Socket outlet with interlocked switchSOI · GA Socket outlet with protective earth contactSO · GA Solar generating stationSOLAR STN · SLD / Schematic Solenoid closing function for an open valveHSV1Y1 · Schematic Solenoid valve actuatorHSV1 · Schematic Solenoid-valve NC auxiliary contactHSV22 · Schematic Solenoid-valve NO auxiliary contactHSV21 · Schematic Solid-state relaySSR · Schematic Spark-gap protective elementSPARK GAP · SLD / Schematic Split adjustable capacitorHCA1_S00579 · Schematic Split-phase inverterINV 2x120 · SLD / Schematic Spotlight plan markSPT · GA Spring-return qualifierQ070107 · Schematic Star winding connectionSTAR Y · SLD / Schematic Star winding with accessible neutralY N · SLD / Schematic Star-delta transformerTX Y-D · SLD / Schematic Star-star transformerTX Y-Y · SLD / Schematic Star-star-delta three-winding transformerTX Y-Y-D · SLD / Schematic Star-stator wound-rotor motor with rotor starterHMO1M5 · SLD / Schematic Star-zigzag transformerTX Y-Z · SLD / Schematic Static frequency converterSFC · SLD Static synchronous compensatorSTATCOM · SLD Static transfer switchSTS · SLD / Schematic Static var compensatorSVC · SLD SubstationSUBSTATION · SLD / Schematic Summation current transformerΣCT · Schematic / SLD Summation energy meterΣ kWh · SLD / Schematic Supercapacitor bankSC · SLD / Schematic Surge arresterSA · SLD / Schematic Switch with pilot light plan markSPL · GA Switch-disconnectorSD · SLD / Schematic Switch-disconnector function qualifierQ070104 · SLD / Schematic Switch-position function qualifierQ070106 · Schematic Switched socket outletSSO · GA Symmetric gas discharge tubeF · Schematic Synchronising lampsSL · Schematic SynchronoscopeSYNC SCOPE · SLD / Schematic Synchronous condenserSC · SLD Synchronous generator with brushless exciterG 3~ BX · SLD / Schematic T-connection without junction dot- · Schematic / SLD TachometerRPM · SLD / Schematic Tachometric dynamoHIN1B11 · Schematic Tapped-secondary current transformerCT TAP · SLD / Schematic Telephone outlet plan symbolTO · GA Telephone set symbolTEL · GA / Schematic Television outlet plan symbolTV · GA Temperature indicatorTEMP · SLD / Schematic Temperature switch NCTS NC · Schematic Temperature switch NOTS NO · Schematic Terminal carrying wire identificationHT0W02 · Schematic Terminal connectionTerminal · Schematic Terminal with wire-number transitionHT1002 · Schematic Thermal circuit breakerCB TH · SLD / Schematic Thermal-effect qualifierQ020801 · Schematic Thermal-magnetic circuit breakerCB TM · SLD / Schematic Thermistor motor protection relayPTC · Schematic ThermocoupleTC · Schematic Thermocouple with terminal boardHTC1LTB · Schematic Three-phase AC motorM 3PH · SLD / Schematic Three-phase AC sourceAC 3PH · SLD / Schematic Three-phase bridge rectifierBR 3PH · Schematic Three-phase circuit with neutral and PE marking3/N/PE · SLD Three-phase induction generatorG 3~ ASG · SLD / Schematic Three-phase induction motor with series excitationHMO1M3 · SLD / Schematic Three-phase motorM · SLD / Schematic Three-phase motor with fanM 3PH FAN · SLD / Schematic Three-phase motor with four connectionsHMO14 · SLD / Schematic Three-phase power-factor capacitorCAP 3PH · SLD / Schematic Three-phase socket outletSO3 · GA Three-phase star autotransformerAT 3PH Y · SLD / Schematic Three-phase synchronous generatorG 3PH SYNC · SLD / Schematic Three-phase synchronous motorM 3PH SYNC · SLD / Schematic Three-phase T winding connectionQ060204 · SLD / Schematic Three-point current measurement selectorHSW1S94 · Schematic Three-position centre-return selectorSEL 3 CRET · Schematic Three-position disconnectorDS 3POS · SLD / Schematic Three-position key selectorKEY SEL 3 · Schematic Three-position maintained selectorSEL 3 HOLD · Schematic Three-position selector returning from leftSEL 3 LRET · Schematic Three-position selector returning from rightSEL 3 RRET · Schematic