| Z 22500 MI 2N "Eole" | |
|---|---|
 MI 2N Eole element 34E at Pantin. | |
| In service | 1998–present |
| Manufacturer | GEC Alsthom and Bombardier |
| Family name | MI 2N, X'Trapolis |
| Constructed | 1997–2000 |
| Entered service | 1997–present |
| Number in service | 53 trainsets (265 cars) |
| Formation | 5 cars per trainset (R+M+R1+M+R) and before 4 cars per trainset (R+M+M+R) |
| Fleet numbers | Z 22501/2 to Z 22605/6 |
| Capacity | 1,337 passengers |
| Operators | SNCF |
| Depots | Noisy-le-Sec |
| Lines served |   |
| Specifications | |
| Car body construction | Stainless steel |
| Train length | 112 m (367 ft 5+7⁄16 in) |
| Width | 2.9 m (9 ft 6+3⁄16 in) |
| Height | 4.32 m (14 ft 2+3⁄32 in) |
| Low-floor | 370 mm |
| Doors | 2 × 3 per car |
| Maximum speed | 140 km/h (87 mph) |
| Weight | 277 t (273 long tons; 305 short tons) |
| Traction system | GEC Alsthom GTO CSI |
| Traction motors | 8 × 450 kW (603 hp) 4 FXA 3561 B asynchronous, 550V, force ventilated |
| Power output | 3,600 kW (4,828 hp) (continuous) |
| Acceleration | 1 m/s2 (3.3 ft/s2) |
| Deceleration |
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| Electric system(s) | |
| Current collector(s) | Pantograph (type AX 25) |
| UIC classification | 2′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 system | Scharfenberg type |
| Multiple working | 2x Z 22500 trainsets (regular service) |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The SNCF Class Z 22500, also known as the MI 2N "Eole" or MI 2N (French: Matériel d'Interconnexion à 2 Niveaux, Est Ouest Liaison Express, English: two-level interconnection rolling stock for the east west express link) is a double-deck, dual-voltage electric multiple unit trainset that is operated on line E of the Réseau Express Régional (RER), a hybrid suburban commuter and rapid transit system serving Paris and its Île-de-France suburbs. The trains are SNCFs version of the MI 2N and looks similar to the other variant, the MI 2N "Altéo" trains (operated by the RATP) but each features different motorization and interior layout.
The 53 five-car trains were built by a consortium of French manufacturer Alstom (then known as GEC Alsthom) and Canadian conglomerate Bombardier. The final assembly of the trains was performed at Alstom's Valenciennes factory and Bombardier's Crespin factory between 1997 and 2000.