The locomotives of the series 2ЭС10 ( 2ES10 ) of the Russian Railways ( RŽD ) are broad-gauge (1520 mm) electric locomotives, which are designed for the 3 kV DC network. It is an eight-axle double locomotive for heavy freight transport, which has received the name of granite. It was developed as a joint venture between Siemens and the Russian Sinara Group and 2011 by the Ural Locomotive Factory ( OOO Uralskie Lokomotívy ) presented in Yekaterinburg.

2010 ordered the RŽD 221 locomotives of this series, which will be delivered between spring 2011 and 2016. With them will be moved to Balesino up to 7,000 -ton freight trains from Tyumen, Yekaterinburg and Perm. In 2011, 11 locomotives manufactured as pre-series and series production began in October 2012.


The first Vorserienlok was delivered on 18 November 2010 for testing purposes. The first test runs in 2011 with a 7,000 tons and 9,000 tons of heavy freight on the 22 km long, intercontinental Ural mountain range west of Yekaterinburg conducted successfully with up to 11 per mil pitch. Here, a three-part version was used in a further Lokhälfte for the 9,000 -ton train. Since in this case, the freight trains no longer have to be shared, results not only from the increase in productivity and an increase in line capacity of heavily loaded lines. In February 2014, the locomotives Bw Chelyabinsk on the route to be Zlatoust - Kropatschowo used.