SNCF Class X 2400

Infobox Locomotive
name=X 2400


caption=The X 2426 at Pont-Audemer
powertype=Autorail
builder=Régie Renault/Decauville
builddate=1951 à 1955
gauge=RailGauge|sg
length=27,73 m
weight=43 t
enginetype=2 moteurs Renault 517
poweroutput=456 kW
transmission=mecanic
topspeed=120 km/h
railroad=SNCF
railroadclass=X 2400
numinclass=79
roadnumber=X 2401 à X 2479
locale=Limoges, Rennes
retiredate=1989

SNCF's X 2400 are a class of railcars. The 79 XABDP 2400, unifiés 600 hp were built from 1951 to 1955. They were capable of carrying 12 passengers in 1^st class and 56 in 2^nd class, they were 27 m long and capable of reaching a top speed of 120 km/h. The railcars were often coupled to trailers of coupled to other units.

The class was put into service along the X 3800, "Picasso". These 300hp railwars facilitated the phasing out of steam traction and to renew ageing railcar stock. The class was firstly allocated to Limoges and onto the lines of the Massif Central, coupled to XR 8000 trailers. The X 2400 was quickly accompanied by the X 2800 railcars, equipped with one engine only, but more powerful.

Maintenance cost of the X 2400 was greater than the one engined X 2800 and so the class was moved to Rennes. The arrival of the X 2100 and X 2200 railcars precipitated the retirement of the X 2400, the last 2400 retiring in 1989.

The X 2464 was withdrawn from service in 1988 and was modified into a measurement train. It was painted into the Corail livery of dark grey, orange and white. Twelve railcars have been preserved.

Exist two sub-classes of X 2400:
*XABDP 2401 to 2469 with a weight of 43 t, two 517G Renault engines with 250 kW (340 ch) output.
*XABDP 2470 to 2479 with a weight of 44.5 t, two Saurer engines with 235 kW (320 ch) output.

X 2400 in preservation