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Electric locomotive

CRRC Zhuzhou SS4B

Built by Zhuzhou

Top speed
100 km/h
62 mph
Power output
6,400 kW
8,583 hp
Track gauge
1,435 mm
Standard gauge
Years built
1995–2006
258 units
Axle arrangement
Bo'Bo'+Bo'Bo'

Overview of the CRRC Zhuzhou SS4B

Discover the SS4B electric locomotive, a powerful workhorse of the China Railway Corporation, designed for efficient and robust rail transport.

Built by Zhuzhou from 1995 to 2006, with 258 units produced, this locomotive features a strong Bo'Bo'+Bo'Bo' axle configuration, ensuring stability and impressive hauling capabilities.

Boasting a significant 6400 kW power output and 628 kN of tractive effort, the SS4B is capable of speeds up to 100 km/h, operating on the standard 1435 mm gauge.

Its 25 kV AC 50 Hz electrical system makes it highly versatile for a wide array of operations, from heavy freight to passenger services.

The SS4B has established a reputation for reliable performance and durability, playing a vital role in the advancement of China's railway network, with its 23-tonne axle load optimized for broad infrastructure compatibility.

CRRC Zhuzhou SS4B technical specifications

Value
SeriesSS4
Built byZhuzhou · 1995–2006258 units
Top speed100 km/h62 mph
Power output6,400 kW8,583 hp
Tractive effort628 kN141,180 lbf
Electric systems
  • 25 kV AC 50 Hz
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementBo'Bo'+Bo'Bo'
Axle load23 t50,706 lb

Operators of the CRRC Zhuzhou SS4B

Railway companies that have operated the SS4B, with the class designation used by each of them.

OperatorClassCountry
China Railway CorporationCR SS4BChina

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