Standard gauge classes (meter gauge can be found under "historic"):
DT8.1 to DT8.3, No. 3001 to 3006 (prototypes), delivered 1981/1982, retired 1990
DT8.4, No. 3007 to 3086, folding steps, delivered 1985/1986
DT8.5, No. 3087 to 3104, folding steps, delivered 1988
DT8.6, No. 3105 to 3168, delivered 1989/1990
DT8.7, No. 3169 to 3180, folding steps, delivered 1992
DT8.8, No. 3181 to 3202, delivered 1993
DT8.9, No. 3203 to 3234, delivered 1996
DT8.10, No. 3301 to 3346, new design and technology, delivered 1999/2000
DT8.11, No. 3347 to 3400, identical to DT8.10, delivered 2003/2004/2005
DT8.12, No. 3501 to 3540, new design and technology, delivered 2012/2013
DT8.14, No. 3541 to 3580, identical to DT8.12, delivered 2017/2018
DT8.15, No. 3581 to 3620, identical to DT8.12, delivered 2021 to 2023
DT8.16, No. 3700 to 3770, new design and technology, to be delivered from 2026
DT8-S, No. 4007 to 4234, refurbished DT8.4 to DT8.9

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