Vacuum Circuit Breaker with Magnetic Actuator Mechanism
ABB is the first to combine the unique requirements of vacuum interrupter technology with a magnetic actuator designed to exploit these capabilities. Using a flux-shifting device with integral permanent magnets, the R-MAG mechanism has only one moving part. With simple open and close coils, an electronic controller and capacitors for energy storage, the R-MAG circuit breaker mechanism is capable of 10,000 operations. These are merely a few of the features that mark a departure from the conventional spring operated mechanism, introducing new capabilities and benefits for modern power systems.
| Ratings |  |
| Nominal voltage class (kV) | 15 - 38 |
| BIL (kV) | 110 - 200 |
| Continuous current (A) | 800 - 3700 |
| Interrupting Current (kA RMS, Sym.) | 12.5 - 31.5 |