Pesa Acatus

ED59[1][2][3][4]
ED59-01 at Kutno railway station
Stock type	Electric multiple unit
Manufacturer	Pesa Bydgoszcz
Constructed	2006
Capacity	157+4 seats 350 in total
Specifications
Train length	63,000 millimetres (207 ft)
Width	2,870 millimetres (9.42 ft)
Height	4,360 millimetres (14.30 ft)
Floor height	1,000 millimetres (3.3 ft)
Wheel diameter	840 millimetres (2.76 ft)
Maximum speed	140 kilometres per hour (87 mph)
Weight	105 tonnes (231,000 lb)
Axle load	3 kV DC
Engine type	induction motor (DKLBZ 3112-4A)
Power output	2,000 kW
Acceleration	1 m/s²
Braking system(s)	Knorr + ED
Seating	s+d+s

Pesa Acatus (Latin for boat) is a standard-gauge electric multiple unit produced in a single copy at the Pesa plant in Bydgoszcz in 2006, specifically for the Marshal's Office of the Łódź Voivodeship. During test runs, it was a four-car unit (ED74 series, 16WE unit type, 310Ba+411Ba+411Bb+310Bb car type), and it is nowadays operated in a three-car configuration (ED59 series, 15WE type).

The design of the vehicle began in 2004, and a year later, it was offered in a tender and subsequently ordered. In April 2006, the production of the train was completed, and throughout that month, it underwent testing for approval for operation. On 29 May 2006, an official presentation of the unit took place in Łódź, combined with an inaugural ride. In 2011, the unit was withdrawn and awaited overhaul, which was ultimately carried out from December 2013 to June 2014. In 2016, the technically functional vehicle was withdrawn due to the expiration of its approval for operation.

In 2007, a development version of the vehicle named Bydgostia was created. In 2010, the manufacturer also built the Acatus II model, and in 2014, the Acatus Plus [pl] family, but they are only related to Acatus by name.