Chinese Rail SS4

Specifications
Specifications
Configuration:;
• UIC	Bo'Bo'+Bo'Bo'
Gauge	1435
Loco weight	92 tonnes × 2
Electric system/s	25 kV 50 Hz AC Catenary
Current pickup(s)	Pantograph
Transmission	AC—DC

Type and origin
Type and origin
Power type	Electric
Builder	Zhuzhou Electric Locomotive Works; Dalian Locomotive & Rolling Stock Works; Datong locomotive factory; CSR Ziyang Locomotive Works
Model	SS4
Build date	1985—2010
Total produced	158 (SS4); 1347 (SS4G)

SS4
韶山4
SS4; 韶山4
Power type
Type and origin
Power type	Electric
Builder	Zhuzhou Electric Locomotive Works; Dalian Locomotive & Rolling Stock Works; Datong locomotive factory; CSR Ziyang Locomotive Works
Model	SS4
Build date	1985—2010
Total produced	158 (SS4); 1347 (SS4G)
Configuration:;
Specifications
Configuration:;
• UIC	Bo'Bo'+Bo'Bo'
Gauge	1435
Loco weight	92 tonnes × 2
Electric system/s	25 kV 50 Hz AC Catenary
Current pickup(s)	Pantograph
Transmission	AC—DC
Top speed
Performance figures
Top speed	100 km/h (62 mph)

The SS4 (Chinese: 韶山4) is a kind of AC-powered electric locomotive used in China. It was built by Zhuzhou Electric Locomotive Works in 1985 and is still produced as of 2010. It also has an updated version: SS4G (Chinese: 韶山4G/韶山4改').