BVG Class A3

You can help expand this article with text translated from the corresponding article in German. (January 2022) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:BVG-Baureihe A3]]; see its history for attribution. You may also add the template {{Translated|de|BVG-Baureihe A3}} to the talk page. For more guidance, see Wikipedia:Translation.

BVG Class A3
Class A3 train at Krumme Lanke station in June 1987
In service	1960–present
Manufacturer	ABB Henschel AEG Orenstein & Koppel Siemens Waggon Union
Constructed	1960–1994
Entered service	1960 (A3-60) 1964 (A3-64) 1966 (A3-66) 1966 (A3L66) 1967 (A3L67) 1971 (A3L71) 1982 (A3L82) 1992 (A3L92)
Formation	Double units
Operators	Berliner Verkehrsbetriebe
Lines served	U1, U2, U3 & U4
Specifications
Car body construction	Aluminium
Train length	25.66 m (84 ft 2+1⁄4 in) (over anticlimbers)
Car length	12.53 m (41 ft 1+5⁄16 in)
Width	2.3 m (7 ft 6+9⁄16 in)
Height	3.18 m (10 ft 5+3⁄16 in)
Doors	12 side doors per unit (6 per side)
Maximum speed	62 km/h (39 mph)
Weight	32,000 kg (70,548 lb) 41,100 kg (90,610 lb)
Prime mover(s)	Electric motor
Electric system(s)	750 V DC third rail
Current collector(s)	Contact shoe
Safety system(s)	Dead man's switch
Coupling system	Scharfenberg

The BVG Class A3 is a type of Kleinprofil train that was built after World War II. The smallest operationally mobile unit is the double-rail car, which consists of a control car (S-car) with a straight carriage number and a compressor car (K-car) with an odd car number. Both vehicles are motorized and each is equipped with a cab, the term "control car" refers to the local facilities for electrical control. The K-wagon contains the compressed air system, the converter system and the lighting equipment. The numbering was carried out by car 999/998 backwards, which 999/998 is the oldest A3 unit. Until the late 1970s, the K-car was reserved for non-smokers, whereas the S-car was allowed to smoke.^{[citation needed]}