SNCF Class Z 22500

Z 22500
MI 2N "Eole"
MI 2N Eole element 34E at Pantin.
In service1998–present
ManufacturerGEC Alsthom and Bombardier
Family nameMI 2N, X'Trapolis
Constructed1997–2000
Entered service1997–present
Number built53
Number in service38 trainsets
Number scrapped15
SuccessorZ 58000
Formation5 cars per trainset (R+M+R1+M+R) and before 4 cars per trainset (R+M+M+R)
Fleet numbersZ 22501/2 to Z 22605/6
Capacity1,337 passengers
OperatorsSNCF
DepotsNoisy-le-Sec
Lines served
Specifications
Car body constructionStainless steel
Train length112 m (367 ft 5+716 in)
Width2.9 m (9 ft 6+316 in)
Height4.32 m (14 ft 2+332 in)
Low-floor370 mm
Doors2 × 3 per car
Maximum speed140 km/h (87 mph)
Weight277 t (273 long tons; 305 short tons)
Traction systemGEC Alsthom GTO CSI
Traction motors8 × 450 kW (603 hp) 4 FXA 3561 B asynchronous, 550V, force ventilated
Power output3,600 kW (4,828 hp) (continuous)
Acceleration1 m/s2 (3.3 ft/s2)
Deceleration
  • 1.15 m/s2 (3.8 ft/s2) (service)
  • 1.25 m/s2 (4.1 ft/s2) (emergency)
Electric system(s)
Current collectionPantograph (type AX 25)
UIC classification2′2′+Bo′Bo′+2′2′+Bo′Bo′+2′2′
Braking system(s)Regenerative, disc and electrodynamic eddy current brake
Safety system(s)Crocodile, EAS and KVB
Coupling systemScharfenberg type
Multiple working2x Z 22500 trainsets (regular service)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The SNCF Class Z 22500, also known as the MI 2N "Éole" (French: Matériel d'Interconnexion à 2 Niveaux, lit.'Interconnecting Bilevel Set'), is a double-deck, dual-voltage electric multiple unit (EMU) operated on RER E, part of the Réseau Express Régional (RER), a hybrid suburban commuter and rapid transit system serving Paris and the surrounding Île-de-France region.

The Z 22500 is the version of the MI 2N series operated by the SNCF. It closely resembles the MI 2N "Altéo" variant operated by the RATP Group, although the two variants differ in their motorization and interior layout.

A total of 43 five-car trainsets were built by a consortium of Alstom (then GEC Alsthom) and Bombardier. Final assembly took place at Alstom's facility in Valenciennes and Bombardier's plant in Crespin between 1997 and 2000. The first unit entered service in 1997.