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Automating Manufacturing Systems - Process Control and ...

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plc wiring - 3.18<br />

disconnect<br />

circuit interrupter<br />

(3 phase AC) (3 phase AC)<br />

normally open<br />

limit switch<br />

normally closed<br />

limit switch<br />

breaker (3 phase AC)<br />

normally open<br />

push-button<br />

normally closed<br />

push-button<br />

double pole<br />

push-button<br />

mushroom head<br />

push-button<br />

F<br />

thermal<br />

overload relay<br />

fuse<br />

motor (3 phase AC)<br />

vacuum pressure<br />

normally closed<br />

liquid level<br />

normally open<br />

liquid level<br />

normally closed<br />

vacuum pressure<br />

normally open<br />

Figure 3.10<br />

JIC Schematic Symbols

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