When delivered, the class E 426.0 locomotives ran at half the power of an E 458.0, reflecting the lower line voltage.

During 1992, 113 002-0 was modified to allow parallel connection of the traction motors.

This allowed operation at the full power rating (800 kW).

[1] Similarly, as improvements were made to the locomotives (and their E 458.0/110 cousins), their maximum speed rating was improved from 50 km/h (31 mph) to 80 km/h (50 mph).

The line speed on the route to Bechyně is restricted to 60 km/h (37 mph).