S3/M4 (Amsterdam Metro)

CAF S3/M4
S3/M4 stock of the Amsterdam Metro, 15 November 2022
Stock typeElectric multiple unit
ManufacturerCAF
Built atBeasain, Spain
ReplacedLHB M1/M2/M3
Constructed1996–1997
Number builtS3: 4 vehicles
M4: 33 vehicles
Formation3 cars per trainset
Mk + Fs
Fleet numbersS3: 70–73
M4: 74–106
CapacityBefore renovation: 66 (seating), 184 (standing)
After renovation: 58 (seating), 192 (standing)
OperatorsAmsterdam Metro
Lines served
Specifications
Train length30.9 m (101 ft 5 in)
Width2.65 m (8 ft 8 in) / 30.0 m (98 ft 5 in)
Doors4 doors per side
Maximum speed70 km/h (45 mph)
WeightS3: 48 tonnes (106,000 lb)
M4: 47 tonnes (104,000 lb)
Traction systemHolec IGBT-VVVF
Power output6 × 70 kW
Acceleration1.3 m/s2 (4.7 km/(h⋅s))
DecelerationService: 1.5 m/s2 (5.4 km/(h⋅s)) Emergency: 1.96 m/s2 (7.1 km/(h⋅s))
Electric system(s)Third rail: 750 V DC
Overhead line: 600 V DC
Current collectionContact shoe and Pantograph
UIC classificationBo′+Bo′+Bo′
Track gauge1,435 mm (4 ft 8+12 in)

The CAF S3/M4 is a series of electric multiple unit (EMU) train operated by Amsterdam Metro, with car numbers 70-73 (S3) and 74-106 (M4). This train was built by CAF in Beasain, Basque Country (Spain) and delivered in 1996-1997. These are metro/light rail vehicles with a length of 30.90 meters and a width of 2.65 meters, consisting of two car bodies resting on two regular bogies and one Jacobs bogie. Since April 2024, this rolling stock has been the oldest operational metro generation in the Netherlands.