Back to index

Logo VBZ

Zurich Transport Authority - Technical facts about Be 4/6

Articulated light rail vehicles Tram 2000 III of type Be 4/6 with three-phase propulsion

In 1972 the Swiss rolling stock industry set the standard for modular light rail vehicles with the delivery of the first Tram 2000 railcars. Since that date several generations have entered service and proved equally popular with the public and operating personnel. The introduction of the S-Bahn within the Zurich region greatly increased the passenger loads on the tram network of the Zurich Transport Authority (VBZ).
To meet this increased demand and to maintain its rolling stock renewal program VBZ ordered a third batch of light rail vehicles in 1988. This third series consists of 23 single articulated railcars of type Be 4/5 and 15 motorized trailer cars designated Be 2/4.
These single cab vehicles are designed for unidirectional operation. A voltage source inverter is used as the three phase propulsion unit. Each of the motor bogies is driven by a three phase squirrel cage motor.
The vehicles of all three series can be freely operated in multiple.

The first prototype of a Tram 2000 with a new low-floor middle section was commissioned in summer 2001. Up to 50 trams will be fitted with an additional low floor section in the future.

Vehicle designation:Be 4/6, Tram 2000 III
Vehicle Nos:2099 - 2121
- mechanical parts:
- bogies:
- electrical parts:
Schindler Waggon AG
ABB Verkehrssysteme AG
Wheel arrangement:B'2'B'
Years of commissioning:1991 / 92
Number of vehicles:23
Max. speed:60 km/h
Gauge:1,000 mm
Length over coupler head:21,400 mm
Overall width:2,200 mm
Mass in running order:25.8 t
Payload:11.1 t
Number of seats:50
Number of standing passengers:107
Nominal catenary line voltage:600 V DC
Number of traction motors:2 (type 6 ELA 4045)
Cont. rating of motor shaft:314 kW
Cont. tractive effort at wheel rim:
- corresponding speed:
37.6 kN
30 km/h
Starting tractive effort at wheel rim:78 kN
Transmission gear ratio:1 : 6.555
Bogie wheel base:1,700 mm
Diameter of wheels (new):660 mm
Top of page
Copyright © 1997

Author: Klaus P. Canavan, last change on 2002-01-19