MR-90

The MR-90 was a class of single-level electric multiple unit (EMU) railcars built in 1994–1995 by Bombardier Transportation for the Société de Transport de la Communauté Urbaine de Montreal (STCUM) and last operated by Exo. They were ordered when the Deux-Montagnes line was completely rebuilt from 1993 to 1995 and all the equipment and infrastructure was replaced.

MR-90
An MR-90 at Deux-Montagnes in 2005.
Stock type	Electric multiple unit
In service	1995–2020
Manufacturer	Bombardier Transportation
Built at	La Pocatière
Replaced	CN Boxcab Electric, CN electric multiple unit
Constructed	1994 - 1995
Entered service	1995
Scrapped	2022 - 2023
Number built	58
Number preserved	2
Number scrapped	56
Fleet numbers	Motor: 400-456 (even) Trailer: 401-449 (odd) Trailer with cab: 481-487 (odd)
Operators	Exo
Depots	St-Eustache
Lines served	Deux-Montagnes (Exo)
Specifications
Train length	One married pair, 52.02 m (170 ft 8 in) over couplers (length over coupler pulling faces) Maximum 5 married pairs, 260.1 m (853 ft 4 in) over couplers
Car length	26.01 m (85 ft 4 in) over Type H coupler and to half way of drawbar
Wheel diameter	864 mm (34 in)
Wheelbase	2,642 mm (8 ft 8 in) (truck) 18,136 mm or 59 ft 6 in truck centers
Maximum speed	120 km/h (75 mph) (design) 109 km/h (68 mph) (service)
Weight	Motor: 57,169 kg (126,036 lb) Trailer: 44,465 kg (98,029 lb) Trailer with cab: 45,372 kg (100,028 lb)
Traction motors	Siemens AC (4 × 284 kW (381 hp) / motor car)[1]
Power output	1,350 kW (1,810 hp)[2]
Tractive effort	100 kN (22,000 lbf) @48 km/h (30 mph)[2]
Acceleration	2.4 km/(h⋅s) or 1.5 mph/s
Deceleration	3.2 km/(h⋅s) or 2.0 mph/s emergency: 4 km/(h⋅s) or 2.5 mph/s
Auxiliaries	700 V AC / one phase / 60 Hz
Power supply	480 V AC / three phase 60 Hz 120 V AC / 60 Hz 37.5 V DC Battery voltage
Electric system(s)	25 kV AC 60 Hz catenary
Current collector(s)	Pantograph
Bogies	2
Braking system(s)	Air
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

With the closure of the Deux-Montagnes line on December 31, 2020, in favour of the Réseau express métropolitain project, the MR-90 fleet was withdrawn from service. They were subsequently transported to Exo's Pointe-Saint-Charles maintenance center for storage. A request for information has been issued to determine the fate of the cars.^[3] In 2022, exo announced that the MR-90 coaches would be scrapped.^[4] A single married pair, composed of motor car number 400 and trailer with cab number 485, was set aside for preservation at the Canadian Railway Museum in Saint-Constant.^[5]

• 
  MR-90 train in summer 2020, a few months prior to the Deux-Montagnes line's closure
• 
  MR-90 train in summer 2020 (Grand-Moulin station)
• 
  MR-90 train in summer 2020 (Grand-Moulin station)

External links

Media related to Bombardier MR-90 at Wikimedia Commons

• MR-90 at Mont-Royal Crossing
• MR-90 at Mont-Royal Station
• High Quality MR-90 departing Sunnybrooke Station
• MR-90 departing Canora Station