The TRAINOSE Class 520, also known as the AEG DE IC-2000N, is the oldest class of trainsets operated by TRAINOSE. They are diesel-powered, they can be DMU-5 or DMU-4 and were built in 1989 and 1995 as class 601 and 651, respectively, from the cooperation of West Germany's AEG and East Germany's LEW, and for about two decades they were the spearhead of the fast- interurban quality trains (InterCity). Sometimes, DMU-4 units circulate coupled with another truck.[1] In total, there are 20 such trainsets, 12 DMU-4 and 8 DMU-5.
The DMU-4 are numbered 520 101 to 520 412, while the DMU-5 520 151 to 520 558. The first batch trainsets can accommodate up to 180 seated passengers, 36 in the first class and 144 in the second, while the second batch trainsets can accommodate up to 214, 75 in the first class and 144 in the second. They have MTU diesel engines[1] with combined power of 2170 kW (1050 x 2 diesel motors MTU 12V396TC13 with supercharger M.T.U ZR170/137) and reaching speeds of up to 180 km/h.