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Andy Burns[_13_] Andy Burns[_13_] is offline
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Default Does this device exist?

wrote:

Relays with ac coils are common. Some are called contactors. And relays/contactors with 2 way contacts are also common.


And combinations of current driven relays and contactors are sold to
give priority or non-priority (first come keeps supply) access to
limited power supply, e.g. showers or EV charging

https://youtu.be/mCeP-rNQTQU

Or for a more "interesting" presentation style ...

https://youtu.be/N_jTZbpUfTc