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The EP1M and EP1P locomotives are designed to haul passenger trains on 1520 gauge railways powered by single-phase 50 Hz AC with the nominal voltage of 25.000 V. The locomotives are operated at -50 - +50o C.

The EP1P has decreased speed and increased rating if compared with the EP1M and is designed to be operated in the mountain conditions. The EP1P differs from the EP1M in the gear ratio of the traction gear box.

It is operated by the Oktober, Zabaikal, Northern Caucasus, South-Eastern, Privolzhsk, Gorky, Far Eastern Railways Branches of the Russian Railways JSC.