Single Line Symbols

Contacts NC

Break contact Basic symbol

Cam. Operated by cam

Clock Activated by clock

Contactor Contactor (power)

Electromagnetic Electromagnetic

Hydraulic/pneumatic double act.. Forced in two directions

Hydraulic/pneumatic single act.. Forced in one direction

Mechanical energy. Activated by mechanical energy

Motor Activated by motor

Temperature Activeted by temperature

Contacts NO

Cam Operated by cam

Clock. Activated by clock

Contactor Contactor

Contactor, auto trip Automatic tripping contactor

Delay activate Delay activate

Delay activate and de-activate Delay activate and de-activate

Delay de-activate Delay de-activate

Detent Detent function

Detent contact Contact with detent

Early Early contact

Elec. effect Operated by electrical effect

Hydraulic/pneumatic double act. Forced in two directions

Hydraulic/pneumatic single act. Forced in one direction

Late Late contact

Level Activated by level

Magnet Activated with magnet

Make contact Basic symbol

Motor. Motor

Passing-actuated Action when actuated

Passing-actuated/released Action when actuated and released

Passing-released Action when released

Position Position switch

Static Static contact

Static contactor Static contactor

Static, down Static contact (down)

Static, up Static contact (up)

Temperature. Activated by temperature

Thermal Thermal contact

External

Emergency stop Emergency stop (positive operation)

Magnet valve Magnet valve

Proximity Proximity

Roller Roller

Fuses

1 phase Fuse in one phase

2 phases Fuses in two phases

3 phases Fuses in three phases

Fuse Basic symbol

Fuse-disconnector Fuse-disconnector

Fuse-switch Fuse-switch

General

1 pole Indicates one wire

2 pole Indicates two wires

3 pole Indicates three wires

4 pole Indicates four wires

LINK Neutral LINK

n pole ?=the number of wires

Measuring

Indicating instrument Indicating instrument

Integrating instrument Meter

Recording instrument Recording instrument

Motors

Machine Basic symbol

Motor.. Motor

Protective

Automatic tripping Automatic tripping

Circuit breaker Circuit breaker

Disconnector Disconnector

Earth fault current HPFI relay

Motor starter Motor starter

Overcurrent/overload Motor protection device

Spark gap Spark gap

Switch-disconnector Switch-disconnector

Relays

Detent-relay Unbiased polarised relay

No voltage relay No voltage relay

Relay Basic symbol

Remanent-relay Remanent-relay

Slow-operating Slow-operating

Slow-release Slow-release

Undervoltage relay Undervoltage relay

Signalling

Bell Bell

Clock.. Clock

Horn Horn

Lamp Lamp

Siren Siren

Switchgear NC

Manual actuator Basic symbol

Pull Operated by pulling

Pull+detent Operated by pulling with detent

Push Pushbutton

Push+detent Operated by pushing with detent

Push+return Operated by pushing with return

Turn Operated by turning

Turn+detent Operated by turning with detent

Switchgear NO

Detent Contact with detent

Manual actuator Basic symbol

Mechanical energy Activated by mechanical energy

Positive operation Positive operation

Pull L Activated by pulling

Pull R Activated by pulling

Pull+detent Pull with detent

Push Basic symbol

Push+detent Activated by pushing with detent

Push+return Activated by pushing with return

Turn+detent. Turn contact with detent

Turn+key Operated by turning + key

Turn+lamp Turn contact with lamp

Turn+lamp+detent Turn contact with lamp and detent

Turn. Turn contact

Terminals

Terminal Terminal

Transformers

Auto-transformer Auto-transformer

Choke Choke

Current transformer Current transformer

One-phase with 2 windings One-phase with 2 windings

Transformer Transformer

Transformer with 3 windings Transformer with 3 windings

Transformer with centre tapping Transformer with centre tapping

Transformer with variable coupling Transformer with variable coupling

Voltage transformer Voltage transformer

Y/D transformer, 3 in 1-phase group Y/D transformer, 3 in 1-phase group

Y/D transformer, 3-phase Y/D transformer, 3-phase

Version

Version 1.00.02 Single-line symbols. Date: 18.06.2001