SNCF Class Z 20900

SNCF Z20900
Z20900 from RER line C at Neuilly-Pte Maillot
In service	2001-Present
Manufacturer	Alstom, Bombardier
Family name	Z2N series
Constructed	2001–2004
Entered service	July 2001
Refurbished	2019 - 2023
Number in service	216 vehicles, 54 trains
Formation	4 cars per trainset
Fleet numbers	Z 20901/2 to 21007/8
Operators	Transilien SNCF
Depots	Les Ardoines
Specifications
Car body construction	Stainless steel
Train length	103.508 m (339 ft 7+1⁄8 in)
Car length	(see below)
Width	2,820 mm (9 ft 3+1⁄32 in)
Height	4,320 mm (14 ft 2+3⁄32 in)
Doors	2 pairs per side
Maximum speed	140 km/h (85 mph)
Traction motors	Alstom OniX IGBT-VVVF
Power output	3,464 kW (4,645 hp)
Acceleration	3 km/(h⋅s) (1.9 mph/s)
Deceleration	5.0 km/(h⋅s) (3.1 mph/s) (emergency brake)
Electric system(s)	1.5 kV DC / 25 kV 50 Hz Catenary
Current collector(s)	Pantograph
Braking system(s)	Electrodynamic
Safety system(s)	Crocodile, KVB.
Coupling system	Scharfenberg type
Multiple working	Z5600,Z8800,Z20500,Z20900
Track gauge	1,435 mm (4 ft 8+1⁄2 in)

The Z20900 Class is a train model built by Alstom and Bombardier between 2001 and 2004 and used by the SNCF for its RER service on the RER C Line.Their arrival on the line allowed the oldest trains to be scrapped. The line becames 100% bi-level trains at this moment.

Specifications

Design

The Z 20900 class are part of the Z 2N family. They are an improved version of the Z20500 class which they succeed. They are distinguished in particular by:

-Large, much more comfortable seats with armrests

-The OnIX traction inverters (Onduleur à Intégration eXceptionnelle) based on IGBT components

-Intercirculation between the two central cars

-Refrigerated ventilation and tinted windows;

The two power cars (ZBe) have 82 seats while the two cars (ZRBe) each have 96, as well as a toilet.

distribution

Today (in 2020) all Z20900 trains are assigned to the RER C line.

They are on all service on the RER C Line.

History

In order to complete the rolling stock fleet of line C of the RER, and to eliminate from the line the last 42 Z 5300 elements still in service, SNCF ordered at the end of 1998 year, new trains of type Z 20500, but comprising various changes in motorization and development. These new components were delivered from July 2001 to 2004 and are numbered Z 20900. Their delivery eliminates, by offset, the first sub-series of Z 6100 in the northern suburbs.

While the first forty elements are decorated with the three-color livery called "Île-de-France", the last fourteen are endowed with the navy blue Transilien livery with cartons, then applied to two-level commuter cars (VB 2N) and stainless steel suburban trainsets (RIB) renovated. The last ten elements of the series are funded by the Île-de-France Regional Council.

The OniX traction chain, tested on element Z 20887-20888, is generalized on these new trains.

They are distinguished from the Z 20500 by the arrangement of the seats with four front seats (2 + 2), all provided with armrests and whose comfort is improved, by the absence of first class compartment, eliminated in the RER on the 1st September 1999, and by the presence of tinted windows and refrigerated ventilation, making it possible to lower the ambient temperature by 3 to 4 ° C in summer.

A locking device for the doors of the power cars allows passengers to gather in the extreme evening in the two central trailers, linked by an interlocking circulation without doors, this in order to lessen the feeling of insecurity in almost empty trainsets.

Gallery

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Bibliography

• Redoutey, Denis (2007). Le matériel moteur de la SNCF. La vie du Rail. ISBN 978-2-915034-65-3.
• Bernard Collardey, Les trains de banlieue, tome II, Éd. La Vie du Rail, 1999, 335 p. ISBN 2902808763

References

translated from the article in french Z20900 on wikipedia

https://fr.wikipedia.org/wiki/Z_20900

• Le parc Z 20900, on metro-pole.net via web.archive.org, 1er janvier 2008(in french)
• Revue bimestrielle Voies Ferrées, Le matériel moteur de la SNCF, en plusieurs articles sur plusieurs numéros par année. (in french)
• Revue mensuelle Rail Passion, État trimestriel du matériel moteur SNCF, un article par trimestre. (in french)
• Lydie, « https://malignec.transilien.com/2017/10/24/sive/ » [archive], Le blog du RER C, 24 octobre 2017 (consulté le 3 novembre 2017).(in french)
• « https://www.cheminots.net/forum/topic/24494-z-5600-z-8800-z-20500-z-20900-z2n-sujet-officiel/page/82/?tab=comments#comment-821264 » [archive], sur Le web des cheminots , article du 22 avril 2018 (consulté le 24 avril 2018) : « La 1ère à sortir du Technicentre de Saint Pierre des Corps est la Z 20905/06 (203A). Cette dernière est ressortie avec la même livrée qu'une partie des Z2N de la ligne C, à base de rouge "carmillon" de la SNCF et "vif argent" du STIF ».(in french)
• Marc Carémantrant, « Les débuts des Z 20900 » dans Rail Passion no 51, septembre 2001, pp. 12 et 13.(in french)
• Bernard Collardey, Les trains de banlieue, tome II, p. 302.(in french)
• « https://www.cheminots.net/forum/topic/24494-z-5600-z-8800-z-20500-z-20900-z2n-sujet-officiel/page/82/ » [archive], sur Le Web des Cheminots (consulté le 11 juin 2018).(in french)