Werner von Siemens Dial telegraph Morse's telegraph Telephone Carbon-arc lamp Electrical tramway Dinamo Vacuum cleaner Tantalum lamp The PROTOS cars Radio-receiver Circuit breakers Television High-purity silicon Ultrasonic scanner ISDN MultiMediaCard Fingertip sensor  Screensaver

The Gallery of Technological wonders Circuit breakers High voltage circuit breakers had to be adapted to the increasing demands of electric power switching. Oilfilled circuit breakers could explode and burn down. In 1929 Siemens-Schuckertwerke therefore developed oilless high voltage circuit breakers, e. g. for 10 kV, which soon became one of the most widespread high voltage circuit breakers.   Siemens S.p.A. 1999 - Milano Communication and Marketing Reproduction and use of the images and texts are prohibited.