Vogele Basic Training Hydraulics & Electrics
Vogele Basic Training Hydraulics & Electrics
Vogele Basic Training Hydraulics & Electrics
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E.6.0 Circuit symbols<br />
E.6.1 Switch and button symbols<br />
1 0 2<br />
Normally<br />
closed<br />
contact<br />
Normally<br />
open<br />
contact<br />
Two-way<br />
contact<br />
Switch with 3 positions<br />
(e.g. traction main switch)<br />
(0 = inoperative)<br />
1 0 2<br />
Push-button,<br />
momentary<br />
contact<br />
Rotary switch,<br />
momentary<br />
contact<br />
Push-button,<br />
maintained<br />
contact<br />
Rotary switch,<br />
maintained<br />
contact<br />
The combinations are infinite.<br />
The diagram above depicts a<br />
maintained contact key switch with<br />
normally open / normally closed<br />
contacts.
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