Inverter switch with intermediate cutting position.
Switch electrical installation symbols.
Period limiting switch single pole.
All symbols others house electrical symbols switches.
The switch symbols below include spst spdt dpst dpdt make contact break contact two way contact 2 position switch 3 position switch 4 position switch limit switch inertia switch mercury switch and also delay switch such as time delay switch time delay break flow actuate switch liquid level actuated switch gas flow actuated switch temperature actuated switch and pressure actuated switch.
Contact double opening.
Double closing contact.
Inverter switch before opening.
Switch opening or resting.
Switch closing or work contact.
Inverter switch before opening.
Single pole changeover switch.
Disconnectors unipolar switch symbols.
Also shown are the component symbols for fuse isolator relay contact pilot light.
Circuit switch cutting contact before making contact.
Key operated switch watchman s system device en 60617.