Siemens has launched a refined medium-voltage circuit-breaker. The 3AH4 vacuum circuit-breakers have an operating current of 4000 A for the 36-kV voltage level. It is the first vacuum circuit-breaker ...
ABB has released the 38 kV R-MAG outdoor vacuum circuit breaker. First introduced in 2002 for 15 kV and 27 kV applications, the R-MAG breaker uses a magnetic actuator design that has only one moving ...
Munich – Schaltbau has introduced a special innovation for AC-driven electric locomotives and multiple units: an AC vacuum circuit breaker that can almost do without any secondary supply energy for ...
HD Hyundai Electric said on the 14th that its low- and medium-voltage circuit breakers have obtained North America’s representative safety certifications, “UL” and “cUL (Canada UL).” UL certification ...
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