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 ...

Siemens has received one report of a circuit breaker spring clip that broke during installation. No injuries have been reported. This recall involves Siemens and Murray 15A through 50A single- and ...