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<< Click to Display Table of Contents >> A-Z: Main symbols |
  
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<< Click to Display Table of Contents >> A-Z: Main symbols |
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The resource categories A-Z (CAPITAL LETTERS) contain main symbols.
Please note that the categories chosen for these standard main symbols are not always fully consistent with IEC1346, since IEC1346 has a tendency to be quite rough in its division. The rightmost column in the table below describes the definition of each letter according to IEC1346, as a reference.
The table below describes the resource categories as they are used in the IEC1082 symbol library.
Resource category |
Use in the standard IEC1082 symbol library |
IEC1346 use |
|
|---|---|---|---|
A |
Assembly, sub-assembly |
Assembled devices like RC circuits |
Two or more purposes or tasks |
B |
Transducers, pilot switches |
Sensors and pilot switches. Please note that actuators for pilot switches are found under lower case e (pilot switch actuators). |
Converting an input variable into a signal for further processing |
C |
Capacitors |
Capacitors |
Storing of energy, information or material |
D |
Binary elements, memories |
Traditionally used for PLC. D is not used by standard IEC1082 symbols |
Not defined in IEC1346 |
E |
Miscellaneous |
Not used by standard IEC1082 symbols |
Providing radiant or thermal energy |
F |
Protective equipment |
Fuses, ground fault interrupters (RCD), overcurrent protection, short circuit protection, surge relay |
Direct protection from dangerous or unwanted conditions |
G |
Generator, power supply |
Generators and batteries |
Initiating a flow of energy or material |
H |
Signalling devices |
Lamps, bells, horns, indicators |
Producing a new kind of material or product. Signalling devices belong to P according to IEC1346. |
I |
Instrument |
This is a library of its own containing over 200 instrument symbols inspired by SSG. |
Not defined in IEC1346 |
J |
Free |
J is not used by standard IEC1082 symbols |
Not defined in IEC1346 |
K |
Relays, contactors |
Coils for relays |
Processing signals or information (Relays and PLC's belong here according to IEC1346) |
L |
Inductive resistors |
Coils, inductors |
Not defined in IEC1346 |
M |
Motors |
Motors and motor circuits |
Providing mechanical energy for driving purposes |
N |
Amplifiers, controllers |
N is not used by standard IEC1082 symbols |
Not defined in IEC1346 |
O |
Free |
O is not used by standard IEC1082 symbols |
Not defined in IEC1346 |
P |
Measuring, testing devices |
P is not used by standard IEC1082 symbols |
Presenting information |
Q |
Heavy-current switchgear |
Dis-connectors, coils for contactors, automatic fuses, overload and short circuit protection, miniature circuit breakers (MCB) |
Controlled switching or varying a flow of energy, of signals or of material |
R |
Resistors |
Resistors, potentiometers |
Restricting or stabilizing motion or a flow of energy, information or material |
S |
Switches, selectors |
Hand and foot operated switches and selectors |
Converting a manual operation into a signal for further processing |
T |
Transformers |
Transformers |
Conversion of energy maintaining the kind of energy |
U |
Modulators, electrical to non-electrical |
Modulators, inverters, rectifiers |
Keeping objects in a defined position |
V |
Tubes, semiconductors |
Diodes |
Processing (treating) of material or products |
W |
Transmission routes |
The cable macro is found under lower case b (Cables...). |
Guiding or transporting from one place to another |
X |
Terminals, connectors |
Macros for terminals and connectors are found under lower case a (Terminals...). X is not used by standard IEC1082 symbols. |
Connecting objects |
Y |
Electrically operated mechanical devices |
Brakes, clutches, valves |
Not defined in IEC1346 |
Z |
Terminations, filters |
W is not used by standard IEC1082 symbols. |
Not defined in IEC1346 |