different between contactor vs relay

English

Etymology

contact +? -or

Pronunciation

• (General American) IPA^(key): /?k?ntækt?/
• (Received Pronunciation) IPA^(key): /?k?ntækt?/

Noun

contactor (plural contactors)

1. (electrical engineering) A relay used to control an electrical power circuit

Translations

See also

• circuit breaker

Romanian

Etymology

From French contacteur.

Noun

contactor n (plural contactoare)

1. contactor

Declension

Spanish

Noun

contactor m (plural contactores)

1. contactor

English

Etymology 1

From Middle French relai (“reserve pack of hounds”), from relaier (“to exchange tired animals for fresh”); literally, "to leave behind", from Old French relaier (“to leave behind”), from re- + laier (“to leave”), of uncertain origin.

Pronunciation

• (noun) IPA^(key): /??i?le?/
• (verb) IPA^(key): /?i?le?/, /??i?le?/
• Rhymes: -i?le?
• Rhymes: -e?

Noun

relay (plural relays)

1. (hunting, rare) A new set of hounds. [from 15th c.]
2. (now chiefly historical) A new set of horses kept along a specific route so that they can replace animals that are tired. [from 17th c.]
3. (by extension) A new set of anything.
4. A series of vehicles travelling in sequence. [from 18th c.]
5. (athletics) A track and field discipline where runners take turns in carrying a baton from start to finish. Most common events are 4x100 meter and 4x400 meter competitions. [from 19th c.]
6. (electronics) An electrical actuator that allows a relatively small electrical voltage or current to control a larger voltage or current. [from 19th c.]

Derived terms

• relay race

Translations

Verb

relay (third-person singular simple present relays, present participle relaying, simple past and past participle relayed)

1. (obsolete, intransitive, hunting) To release a new set of hounds. [15th-17th c.]
2. (transitive, now rare) To place (people or horses) in relays, such that one can take over from another. [from 18th c.]
3. (intransitive, now rare) To take on a new relay of horses; to change horses. [from 19th c.]
4. (transitive) To pass on or transfer (information). [from 19th c.]

Synonyms

• (to relay a message): convey

Translations

Etymology 2

re- +? lay

Pronunciation

• (UK) IPA^(key): /??i??le?/
• (US) IPA^(key): /??i?le?/
• Rhymes: -i?le?
• Homophone: re-lay

Verb

relay (third-person singular simple present relays, present participle relaying, simple past and past participle relaid)

1. Alternative spelling of re-lay

Anagrams

• Arely, Arley, Early, Layer, Leary, Raley, Rayle, early, layer, leary