Symbols of Power Switching Devices
The power switching devices are responsible for establishing, sustaining and interrupt the electrical current in a circuit when, because of the electric arc, can not be done by a simple contact.
| Symbol | Description | Symbol | Description | |
|---|---|---|---|---|
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Static switch - Semiconductor Generic symbol |
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Static contactor - Semiconductor | |
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Contactor open + Info |
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Ruptor / Contact breaker Closed contactor |
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Isolator / Disconnector + Info |
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Isolating switch Disconnector |
|
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Isolator with two possible positions |  |
Manual control disconnector | |
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Contactor with automatic disconnection |  |
Disconnector switch with automatic opening | |
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Static switch – Semiconductor Allows current to only flow anticlockwise |
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Static switch - Semiconductor Allows current to only flow to the right |
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Disconnector contact with fuse |  |
Disconnector with built-in fuse | |
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Contact disconnect switch |  |
Manual control switch disconnector | |
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Manual control switch with locking device |  |
Circuit breaker + Info |
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Three-phase Power Switching Devices Symbols |
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Disconnect |  |
Circuit interrupter | |
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Circuit breaker with magnetic OL |  |
Circuit breaer with thermal OL | |
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Circuit breaker with thermal and magnetic OL | |||
Symbols of switches, contacts and low-power actuatorsSymbol of switches with single line - unifilar representationSymbols of effect switches or dependenciesDownload symbols |
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