Z 50000
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Z 50000
Z 50000
Z50000 IDFM et SNCF Carmillon.jpg
A pair of Z 50000 trainsets in the older Carmillon livery (left) and the STIF/ÎdFM livery (right)
In service2009-present
ManufacturerBombardier Transportation
Built atCrespin
ReplacedBB 17000
Z 6100
Z 6400
Number under construction360 trainsets[1]
Number in service320 trainsets (as of September 2021) (2390 cars)
Formation7 or 8 cars per trainset
170 trainsets with 7 cars
150 trainsets with 8 cars
(all as of September 2021)
CapacitySeated: 405+ / 503*
Standing: 468+ / 552* (at 4 per square metre)
  • Technicentre Paris Nord
  • Technicentre Paris Est
  • Levallois
  • Argenteuil
Line(s) servedTransilien TransilienTransilienTransilienTransilienTransilien RER RER E
Car body constructionStainless steel
Train length94.3 m (309 ft 5 in)+
112.5 m (369 ft 1 in)*
Car length16.53 m (54 ft 3 in) (end car)
13.24 m (43 ft 5 in) (intermediate cars)
Width3.06 m (10.0 ft)
Height4.28 m (14 ft 1 in)
Entry985 mm (38.8 in)
Doors1,950 m (6,397 ft 8 in)
Wheel diameter840 mm (33.07 in)
Wheelbase1.9 m (75 in)
Maximum speed140 km/h (87 mph)
Weight210,000 kg (460,000 lb)+
240,000 kg (530,000 lb)*
Traction systemBombardier MITRAC IGBT-VVVF
Traction motors3-phase AC asynchronous bi-motors
Power output2,950 kW (3,960 hp)* (2,620 kW (3,510 hp) continuous)
Acceleration1 m/s2 (3.3 ft/s2) (0 to 50 km/h or 0 to 31 mph)*
Deceleration1.05 m/s2 (3.4 ft/s2)* (service brakes)
Electric system(s) or 25 kV 50 Hz AC, both from overhead catenary
Current collection methodPantograph Type AX
BogiesFLEXX Compact
Braking system(s)Disc, dynamic and regenerative
Safety system(s)Crocodile and KVB
Coupling systemScharfenberg type
Multiple workingZ 50000
Track gauge ()
+ Seven car train, * Eight car train

The SNCF Class Z 50000 (Technical Name), also known as the 'Francilian' (Operating Name), or 'NAT' (Project Name for French: Nouvelle Automotrice Transilien, English: New Rail car Transilien) is a type of dual-voltage electric multiple unit trainset designed in the 2000s. It is commuter rail system serving Paris and its Île-de-France suburbs on the Transilien network. Departing stations are Gare du Nord, Gare de l'Est and Gare Saint-Lazare.

A total of 360 trainsets have either been built or are under construction by Canadian conglomerate Bombardier at its Crespin, France (near Valenciennes) factory since 2006. The first set was placed into regular passenger service on 14 December 2009.

The name Francilien is also the demonym for people living in Île-de-France.


In 2004, the Syndicat des transports d'Île-de-France (STIF, the transit authority for the Paris region until June 2017) began the tendering process for approximately 180 new electric multiple unit trainsets to replace SNCF's aging single-deck suburban fleet, including trainsets nicknamed "inox" (short for inoxydable, English: stainless [steel]) (Classes Z 5300, Z 6100, Z 6400) and similar push-pull trainsets known as RIB (Rame inox de banlieue [fr]) and RIO (Rame inox omnibus [fr]). The SNCF and STIF requested bids for a train design that could operate on a typical journey of 30 to 50 kilometres (19 to 31 miles) in length, including numerous stops lasting 30 to 40 seconds, and able to operate from either 1.5 kV DC or 25 kV AC overhead catenary electrification.[5]

Alstom, Bombardier, and Siemens all submitted bids for the project.[6] In 2006, SNCF (French Railway Company) and Syndicat des transports d'Île-de-France (STIF, the transit authority for the Paris region until June 2017) awarded the contract to Bombardier with a firm order for 172 'Francilien' trainsets at a cost of EUR1.85 billion, with an option for 200 more.[2][3]

Bombardier presented the Spacium vehicle at Crespin on 6 February 2009.[7] The first service operated by a Francilien train was on Transilien Line H from Paris Gare du Nord to Luzarches on Sunday 13 December 2009.[8] As of December 2018, 360 trainsets had been ordered, and about 240 were in active service.[9]


Bombardier vehicle design is articulated using Jakobs bogies between the carriages. Seating is in a 3+2 layout giving over 400 seats in a seven-car unit, over 500 in an eight-car set. Total capacity exceeds 800 (or 1,000 in eight-car trains) including standing passengers at 4 per square metre (3.3/sq yd). The vehicle's width is 3.06 metres (10.0 ft), which is wider than previous trains, achieved by having a relatively short car length of 13.24 metres (43 ft 5 in).[5][4] The inter-carriage passages have wide, open gangway connections, limiting bottlenecking.[4] All interior lights are provided by light-emitting diodes (LED), so power consumption is lessened.[5]

Photo gallery

See also


  1. ^ Liste des Z 50000 sur le site Trains du Sud-Ouest.
  2. ^ a b Dossier de Presse (28 mars 2008) Visite à Crespin (Nord) de la ligne de fabrication du Francilien (PDF) (in French), STIF, 28 March 2008, archived from the original (PDF) on 7 September 2008
  3. ^ a b "Paris prepares for the Spacium age". International Railway Journal. September 2008. pp. 29-32.{{cite magazine}}: CS1 maint: url-status (link)
  4. ^ a b c "SPACIUM 3.06 - Ile-de-France commuter train". Bombardier Transportation.
  5. ^ a b c "L'automotrice "Francilien", futur matériel pour l'Île-de-France"", Revue générale des chemins de fer (in French), no. 172, pp. 7-16, May 2008, ISSN 0035-3183
  6. ^ Des trains modernisés sur le réseau Transilien (PDF), Syndicat des Transports d'Ile-de-France, 24 March 2006, 3. Nouvelle Automotrice Transilien (NAT), archived from the original (PDF) on 3 March 2013
  7. ^ "Spacium ? ?" (PDF), ? () (in Russian), no. 3, pp. 31-36, 2009[permanent dead link]
  8. ^ First run for the Francilien, SNCF, 11 December 2009
  9. ^ "Paris commuter EMUs ordered". Railway Gazette International. 27 December 2018. Retrieved 2018.


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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