Interlocking Contactor

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Interlocking Contactor

 

a contactor for switching circuits with control and signalling functions. Several groups of contacts are found in an interlocking contactor that is capable of switching DC or AC circuits carrying up to 20 amperes. Interlocking contactors are equipped with an electromagnetic actuator that can operate on both AC and DC.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
No off-the-shelf product was available for this, though the concept is fairly simple -- build a box with interlocking contactors that sense first in-current.