contactor

[ kon-tak-ter, kuhn-tak-ter ]
/ ˈkɒn tæk tər, kənˈtæk tər /

noun Electricity.

a mechanically operated switch for continuously establishing and interrupting an electric power circuit.

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Origin of contactor

First recorded in 1905–10; contact + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for contactor

contactor
/ (kɒnˈtæktə) /

noun

a type of switch for repeatedly opening and closing an electric circuit. Its operation can be mechanical, electromagnetic, or pneumatic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012