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When do switches require control power?<br />

Switches require control voltage when they are controlled electrically either locally or remotely. In order to select any motor operated switch in the Interrupter Screen; a motor voltage must be specified. To get a Shunt Trip SEM mechanism, a trip circuit voltage must be selected. If you are locked out of a certain type switch, then you probably need to specify a control voltage.

CTA-ID : 2011841
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