SS4G Electric Locomotive

Source:DateTime:2025-06-13

SS4G electric locomotive is the first generation of heavy-duty AC-DC transmission electric locomotive for freight transportation of China Railway. The locomotive adopts the multiple connection of two units and the axle arrangement of 2(B0-B0). The continuous power of the locomotive is 2×3200kW, and the maximum running speed is 100km/h.

Main Technical Parameters

Power Supply SystemAC 25kV/50HzTrack Gauge1435mm
Axle Arrangement(B0-B0) + (B0-B0)Locomotive Service Weight2×92t
Axle Load23tWheel Diameter1250mm
Distance Between Loco. Front
and Rear Coupler Centers
2×16416mmMin. Negotiable Curve Radius125m
Max. Running Speed100km/hContinuous Speed51.5km/h
Max. Starting Tractive Effort2×628kNContinuous Tractive Effort
2×436.5kN
Loco. Continuous Power2×3200kWOverall Dimensions (L×W×H)15200mm×3100mm×4040mm
(single loco.)