The three-car trains will be delivered in 2018 and will be used on services from Zvolen to Banská Bystrica and Fil’akovo.
The order comprises seven three-car trains, each seating 160 passengers, and 14 two-car sets, which seat 110.
The order is being funded with the aid of a grant from the European Union.
ZSSK already operates 32 class 861 sets, which were delivered in two batches between 2011 and 2015.
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