MR-90

MR-90
MR-90
	An MR-90 at Deux-Montagnes in 2005.
Manufacturer	Bombardier Transportation
Replaced	CN Boxcab Electric, CN electric multiple unit
Constructed	1994 - 1995
Entered service	1995
Number built	58
Number in service	58
Fleet numbers	Motor: 400-456 (even); Trailer: 401-449 (odd); Trailer with cab: 481-487 (odd)
Operator(s)	Exo
Line(s) served	Deux-Montagnes (Exo)
Specifications
Train length	One married pair, 52,020 mm (170 ft 8 in) over Type H couplers; (length over coupler pulling faces); Maximum five married pairs, 130,050 mm (426 ft 8 in) over Type H couplers
Car length	26,010 mm (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	4 Siemens AC / car
Power output	284 kW or 381 hp per traction motor
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 collection method	Pantograph
Bogies	2
Braking system(s)	Air
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The MR-90 is 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 now operated by Exo. These cars were ordered when the Deux-Montagnes line was completely rebuilt from 1993 to 1995 and all the equipment and infrastructure was replaced. With the closure of the Deux-Montagnes line on December 31, 2020 in favor of the Réseau express métropolitain project, the MR-90 fleet will most likely be retired.

Specifications[]

General Data:

Technical / Performance Data:

Auxiliaries::
- 700 V AC / 1 phase / 60 Hz
Head end power:
- 480 V AC / 3 phase / 60 Hz
  120 V AC / 60 Hz
- Battery Voltage:
  - 37.5 V DC
Car makeup: 29 powered cab cars, 25 trailers, 4 trailer cab cars
Maximum train consist: 5 married pairs
Number of traction motors: 4 per power car
Traction motors: Siemens AC
Power output: 284 kW or 381 hp per motor
Initial acceleration: 2.4 km/(h⋅s) or 1.5 mph/s
Maximum service deceleration: 3.2 km/(h⋅s) or 2.0 mph/s
Maximum emergency deceleration: 4 km/(h⋅s) or 2.5 mph/s
Maximum buff load: 3,558 kN or 800,000 lb_f

Capacities:

Dimensions and Weights:

Length over Type H coupler and to half way of drawbar: 26,010 mm or 85 ft 4 in
Overall width: 3,200 mm or 10 ft 6 in
Rail to roof height: 3,937 mm or 12 ft 11 in
Rail to top of floor height: 1,295 mm or 51 in
Rail to top of equipment height, except pantograph: 4,420 mm or 14 ft 6 in
Doorway width (side center doors): 1,270 mm or 50 in
Doorway height (side center doors): 1,905 mm or 6 ft 3 in
Doorway width (side end doors): 1,219 mm or 48 in
Doorway height over first step (side end doors): 2,413 mm or 7 ft 11 in
Floor to ceiling height (high ceiling): 2,159 mm or 7 ft 1 in
Floor to ceiling height (low ceiling): 2,006 mm or 6 ft 7 in
Truck center distance: 18,136 mm or 59 ft 6 in