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close this bookCircuits, Formulas and Tables Electrical Engineering - Basic Vocational Knowledge
close this folder1. Selected Graphical Symbols of Electrotechnology
View the document1.1. Graphical Symbols for General Circuit Elements
View the document1.2. Graphical Symbols for Types of Current, Voltage and Connections
View the document1.3. Graphical Symbols for Lines and Line Connections
View the document1.4. Graphical Symbols for Resistors
View the document1.5. Graphical Symbols for Capacitors
View the document1.6. Graphical Symbols for Coils and Transformers
View the document1.7. Graphical Symbols for Current and Voltage Transformers
View the document1.8. Graphical Symbols for Electrochemical and Electrothermal Sources
View the document1.9. Graphical Symbols for Tubes
View the document1.10. Graphical Symbols for Semiconductors
View the document1.11. Graphical Symbols for Switching Devices
View the document1.12. Graphical Symbols for Machines
View the document1.13. Graphical Symbols for Meter Movements and Measuring Instruments
View the document1.14. Graphical Symbols of Electroacoustics
View the document1.15. Graphical Symbols for Wiring Plans

1.11. Graphical Symbols for Switching Devices

Term

Graphical Symbol


in full

simplified

Switching members



make contacts, general



break contacts, general



change-over switch, general



change-over switch with central rest position



Relay switching members



make contacts



break contacts



change-over switch with interruption in switching



Switches



hand-actuated lever switch



make contacts with automatic resetting



break contacts with automatic resetting



disconnecting switch, three-pole



power circuit-breaker, three-pole



power breaker, three-pole



power switch, three-pole



switch, three-pole, with one make contact and two break contacts



Drive members



drive, general



drive, thermal



drive by centrifugal force



drive by piston



drive by electrical motor



drive by cams



drive by float



manual drive



manual drive with automatic resetting



foot drive



actuation by means of a key



drive by relay or contactor



Electrical drive systems



relay winding only for alternating current



winding of a relay insensitive to alternating current



winding of an electro-thermal relay



winding of a remanence relay



winding of a polarised relay



winding for relay tripping by over-current



winding for relay tripping by undercurrent



winding for relay tripping by reverse current



winding for relay tripping by overvoltage



winding for relay tripping by undervoltage



winding for relay tripping by error voltage



winding for thermal tripping of relay



relay winding with delay of attraction



relay winding with delay of dropping



relay winding with delay of attraction and dropping



relay winding with electrothermal delay



relay winding with electronic delay



winding for relay tripping by open-circuit working



winding for relay tripping by closed-circuit working



winding for relay tripping by overcurrent with time lag



Plugged connections



receptacle



plug



connector, single-pole



connector, four-pole



h.f. coaxial receptacle



h.f. coaxial connector



h.f. coaxial connector, two - core