The accompanying cut shows the combination of battery B, the circuit-breaker, and the rod mounted upon the box.
In our first circuit (A) there is a battery and a circuit-breaker, which is a common telegraph-key.
The circuit-breaker worked and the alternating current did the rest.
There were two circuit-breaker chambers, one at Station 286 and the other at Station 310.
A circuit-breaker may be set so as to open its connections in one or more seconds after a certain current begins to flow.
A circuit-breaker with its contacts under oil offers a much smaller opportunity than a fuse for the maintenance of an arc.
|circuit breaker |
A switch that automatically interrupts the flow of electric current if the current exceeds a preset limit, measured in amperes. Circuit breakers are used most often as a safety precaution where excessive current through a circuit could be hazardous. Unlike fuses, they can usually be reset and reused.