Relay contact power supply issue
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I have a question for everyone: If the relay coil is powered by 24V, can 220V AC be applied across the corresponding normally open and normally closed contacts on the relay base?
Contacts and coils are two distinct concepts; for contacts, it is sufficient as long as their capacity does not exceed the specified value – see the relay’s specifications for details
Which parameter of the relay should be checked to determine that it is suitable? Thank you
The third floor is correct; the power supply coil of a relay and the capacity of its contacts are two different concepts
Generally speaking, relays can be used to supply 220V AC to safety barriers and isolators. But it is still necessary to check the specifications and instructions of the relay.
Yes, it is possible; when using a relay to control an electric valve or the coil of a contactor, both sides of the contacts are at 220V
It’s possible; the relay contacts have a maximum power limit, as long as the power used does not exceed that limit... It’s entirely feasible to use 5V to control 12V, 12V to control 24V, or 24V to control 220V……