RER NG

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You can help expand this article with text translated from the corresponding article in French. (December 2022) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at [[:fr:Z 58000 / Z 58500]]; see its history for attribution. You may also add the template {{Translated|fr|Z 58000 / Z 58500}} to the talk page. For more guidance, see Wikipedia:Translation.

RER NG (Class Z 58000/Z 58500)
A RER NG trainset testing in Savoie
Stock type	Electric multiple unit
In service	2023–present
Manufacturer	Alstom
Family name	X'Trapolis
Constructed	2018–present
Entered service	13 November 2023
Number under construction	255 trainsets
Number in service	17
Formation	6 cars per trainset (Z 58000) 7 cars per trainset (Z 58500)
Fleet numbers	Z 58001/2 -
Capacity	1,563 passengers (6 cars) 1,861 passengers (7 cars)
Operators	SNCF
Depots	Joncherolles Nanterre Noisy-le-Sec Villeneuve
Lines served
Specifications
Car body construction	Stainless steel
Train length	112 m (367 ft 5 in) (6 cars) 130 m (426 ft 6 in) (7 cars)
Width	2,996 mm (9 ft 10.0 in)
Doors	2 pairs per side, per car
Maximum speed	140 km/h (87 mph)
Traction system	Alstom OniX IGBT–VVVF
Traction motors	16 × Alstom 4ECA 2842A 3-phase AC induction motor
Power output	4,000 kW (5,364 hp) (under 1,500 V DC) 5,000 kW (6,705 hp) (under 25 kV 50 Hz AC) per trainset
Acceleration	1.18 m/s2 (3.9 ft/s2) 6 cars 1.04 m/s2 (3.4 ft/s2)" 7 cars
Deceleration	1.15 m/s2 (3.8 ft/s2) (service) 1.25 m/s2 (4.1 ft/s2) (emergency)
HVAC	Refrigeration and in-train heater
Electric system(s)	Overhead line:     25 kV 50 Hz AC     1,500 V DC
Current collector(s)	Pantograph
UIC classification	Bo′Bo′+Bo′Bo′+2′2′+2′2′+Bo′Bo′+Bo′Bo′ (6 cars) Bo′Bo′+Bo′Bo′+2′2′+2′2′+2′2′+Bo′Bo′+Bo′Bo′ (7 cars)
Braking system(s)	Electrodynamic regenerative brake
Safety system(s)	Crocodile, KVB, CBTC (NExTEO)
Coupling system	Scharfenberg-type, made by Dellner
Multiple working	Within type
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

RER NG (French: RER Nouvelle Génération, English: RER New Generation), also known as the X'Trapolis Cityduplex and classified as Class Z 58000 and Class Z 58500, is a double-deck, dual-voltage electric multiple unit trainset that operates on line D and 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 trainsets have gradually been introduced to service since November 2023 on line E,^[1] and since December 2024 on line D.^[2]

The trainsets are being built by a consortium of French manufacturer Alstom and Canadian conglomerate Bombardier. The RER NG is part of Alstom's X'Trapolis Duplex platform and is an evolution of several generations of double-deck trainsets built by the consortium, including the Z 2N, MI 2N, and MI 09 series.

Final assembly takes place at the Alstom factory in Valenciennes and the former Bombardier plant in Crespin, while the car bodies are being manufactured at the Alstom plant in Česká Lípa, Czech Republic.^[1]