British Rail Class 357

British Rail Class 357 Electrostar
A Class 357 at Southend East in 2020
The interior of a Class 357/3 in 2020
In service	2000–present
Manufacturer	Adtranz Bombardier Transportation
Built at	Derby Litchurch Lane Works
Family name	Electrostar
Replaced	Class 310 Class 312 Class 317
Constructed	1999–2002
Number built	74
Formation	4 cars per unit: DMSO-MSO-PTSO-DMSO
Capacity	357/0 and /2: 282 seats 357/3: 222 seats
Owners	357/0: Porterbrook 357/2 & /3: Angel Trains
Operators	c2c
Specifications
Car length	DMSO: 20.40 m (66 ft 11 in) MSO/PTSO: 19.99 m (65 ft 7 in)
Width	2.80 m (9 ft 2 in)
Height	3.78 m (12 ft 5 in)
Maximum speed	100 mph (160 km/h)
Weight	DMSO vehs.: 40.7 t (40.1 LT; 44.9 ST) MSO vehs.: 36.7 t (36.1 LT; 40.5 ST) PTSO vehs.: 39.5 t (38.9 LT; 43.5 ST) Unit total: 157.6 t (155.1 LT; 173.7 ST)
Traction motors	6 × three-phase AC
Power output	1,500 kW (2,011 hp)
Electric system(s)	25 kV 50 Hz AC Overhead lines
Current collector(s)	Pantograph
Bogies	Powered: Adtranz P3-25 Unpowered: Adtranz T3-25
Coupling system	Tightlock
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge
Notes/references
Sourced from unless otherwise noted.

The British Rail Class 357 "Electrostar" alternating current (AC) electric multiple units (EMU) were built by ADtranz, Derby (now owned by Bombardier Transportation) from 1999 to 2003 at a cost of approximately £350 million. The Electrostar family also includes Classes 375, 376, 377, 378, 379 and 387, and is the most numerous type of EMU built in the post-privatisation period of Britain's railways. These units were built in two batches for LTS Rail, since rebranded as c2c.

References

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