auxiliary switch
Also found in: Acronyms.
auxiliary switch
[ȯg′zil·yə·rē ′swich] (electricity)
A switch actuated by the main device (such as a circuit breaker) for signaling, interlocking, or other purposes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.