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 | 721/ ex. T 458.1 4axle diesel electric locomotive with the power of 651 kW. The locomotive is stocked by the diesel engine K6S310D with the main generator. The locomotive was supplied with the gauge 1520 mm in the marking ČME 2.
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| Technical specification |
| Axle arrangement |
Bo`Bo` |
| Gauge |
1435 mm |
| Length over buffers |
13280 mm |
| Distance between bogie pivots |
6700 mm |
| Bogie wheelbase |
2400 mm |
| Wheelbase total |
9100 mm |
| Diameter of driving wheels (new) |
1050 mm |
| Height over rails |
4100 mm |
| Weight in servise |
74 t |
| Maximal axleload |
18 t |
| Maximal allowed speed |
70 km/h |
| Minimal negotiated curve radius according to UIC / 10 km/h |
90 m |
| Diesel engine model |
ČKD 6 S 310 DR |
| Nominal output |
551 kW |
| Revolutions by full load |
750 ot./m |
| Number of cylinders |
6 |
| Power transmission |
dieselelectric |
| Main generator |
TD 868 |
| Traction motor / number |
TE 004 / 4 |
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