double-throw circuit breaker
double-throw circuit breaker
[¦dəb·əl ‚thrō ′sər·kət ‚brāk·ər] (electricity)
Circuit breaker by means of which a change in the circuit connections can be obtained by closing either of two sets of contacts.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.