HKL Class M100
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The HKL Class M100 is the first and oldest class of metro trains in use on the Helsinki Metro. One train consists of two individually numbered cars. A total of 42 units were manufactured between 1977
A refurbished M100 train, February 2026
Interior of a M100 carriage
Silicon controlled rectifier
Videos
A silicon controlled rectifier or semiconductor controlled rectifier is a four-layer solid-state current-controlling device. The name "silicon controlled rectifier" is General Electric's trade name fo
HKL Class M100
…840 mm (33 in) Wheelbase 2,200 mm (7 ft 2+5⁄8 in) Maximum speed 100 km/h (62 mph) (design) 80 km/h (50 mph) (service) Traction system Strömberg SAMI SCR–VVVF Traction motors 8 × Strömberg HXUR/E 505G2 125 kW (168 hp) asynchronous 3-phase AC Power output 1 MW (1,300 hp) Electric systems 750 V DC third…
Silicon controlled rectifier
Characteristic curve of a silicon-controlled rectifier