In the 1920s, plans emerged to equip the northern section of the
Breslau-Görlitz line with overhead wiring, as this was the primary
route for coal from the Upper Silesian region. In 1924, the
Deutsche Reichbahn commissioned AEG to submit proposals for an
electric locomotive capable of hauling 2,000-ton coal trains and
530-ton passenger trains at 45 km/h on this route. The locomotives
needed to be divisible to facilitate maintenance at smaller depots,
which necessitated a design incorporating two transformers and
control systems. Consequently, in March 1926, the Deutsche
Reichbahn specified the delivery of a series of 1’Co+Co1′
locomotives featuring Tatzlager design and assigned AEG to provide
the mechanical components for six locomotives and the electrical
components for three locomotives, while Siemens was tasked with the
electrical equipment for the remaining three locomotives.
Twenty months after construction commenced in December 1927, the
E95.01 locomotive was ready for testing. By mid-1928, all other
locomotives had been delivered.
The first trial run took place in March 1928 with the E95.03. This
test journey, conducted between Königszelt and Wroclaw,
demonstrated their peak performance, as the train consisted of 39
new (drop-bottom) freight cars of the OOt type, including the
measuring car, weighing a total of 2,568 tons. During this trip,
the locomotive accelerated the train to a speed of 60 km/h,
allowing for the determination of the effective power output during
startup. The locomotive drew a current of 230 amperes from the
overhead line while operating in Wroclaw, with the overhead voltage
dropping from 14 kilovolts to 12 kilovolts, resulting in a power
output of 2,760 kilowatts.
These locomotives primarily serviced heavy coal trains between
Waldenburg-Dittersbach and Görlitz on the Silesian mountain tracks,
proving their capability and demonstrating the exceptional
performance achievable with the Tatzlager drive. The maximum speed
was set at 70 km/h, and these locomotives recorded the highest
mileage among all Silesian electric freight locomotives.
The E95.01 reached a total mileage of 78,538 kilometers in 1928,
with E95.05 achieving a peak of 82,344 kilometers in 1929.
As coal train traffic declined in the early 1930s, the locomotives
were repurposed for passenger service, facilitated by the
installation of a safety system.
The E95.02 was exhibited at a Berlin showcase in 1930, where it was
presented as the most powerful electric locomotive of the Deutsche
Reichbahn.
In 1931, plans were made for the electrification of the
Stuttgart-Karlsruhe line, which included the construction of 20
locomotives; however, this electrification was never realized, and
consequently, no follow-up series of this locomotive type was
ordered. Thus, only six machines remained, primarily operating on
the Silesian mountain routes.
All locomotives survived World War II and subsequently were located
in the territory of what later became East Germany (DDR).
Except for the E95.02, all locomotives were scrapped.