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main characteristics
Term | Definition |
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Circuit breaker | A mechanical switching device, capable of making, carrying and breaking currents: under normal circuit conditions, also for a specified time and breaking currents under specified abnormal circuit conditions such as those of short-circuit. |
Current limiting circuit breaker (токоограничивающий) | CB with a break-time short enough to prevent the short-circuit current reaching its otherwise attainable peak value. |
Plug-in circuit-breaker | втычной. in addition to its interrupting contacts, has a set of contacts which enable (позволяющих) the CB to be removed. |
Withdrawable circuit-breaker | выкатной. in add. has a set of isolating contacts which enable the circuit-breaker to be disconnected from the main circuit, in the withdrawn position, to achieve an isolating distance in accordance with specified requirements. |
Moulded-case circuit-breaker | В литом корпусе. CB having a supporting housing of moulded insulating materialforming an integral part of the CB |
Disconnector | Разъединитель. A mechanical switching device which, in the open position, complies with the requirements specified for the isolating function. |
Release | Расцепитель. A device, mechanically connected to a mechanical switching device, which releases the holding means and permits the opening or the closing of the switching device. |