The following table provides the IEC and
BS Electrical Symbols for contacts. We have included the
Normally Open and Normally Closed status for each contact |
|
Normally open Contact
(N/O)
|
|
Normally Closed Contact
(N/C)
|
|
Change Over or 2 way Contact
Made position
|
|
Fused Switch Open Contact
(N/O)
|
|
Limit Switch
(N/O)
|
|
Limit Switch
(N/C)
|
|
Flow Switch
(N/O)
|
|
Flow Switch
(N/C)
|
|
Time Delay
(N/O)
Delay on Closing
|
|
Time Delay
(N/O)
Delay on re-opening
|
|
Thermal Switch - Overload
(N/O)
|
|
Thermal Switch - Overload
(N/C)
|
|
Temperature Switch
(N/O)
|
|
Temperature Switch
(N/C)
|
|
Pressure Switch
(N/O)
|
|
Pressure Switch
(N/C)
|