TDR – Trunking is produced for 100A and 200A. There are two basic types of TDR III and TDR IV distribution. The principle difference is in the number of conductors. TDR has three copper condutors nominal voltage 380V, and TDR IV has four, nominal voltage 3 x 435/250 V. Standard lengths are 3m. It is possible to deviate trunking in are fashion. Switches with line interruption are also available.
The trunking is used to supply power to all movable consumers, cranes, grinders, nut runners and similar equipment.
Basic elements from which TDR line formed are:

1. Feed cable
2. Initial feed box
3. Centre feed box
4. Straight element with 3m length
5. Supporting connection box
6. Special purpose box- for insertion of a trolley
7. Arc element
8. End box
9. Ceiling type holder
10. Wall type holder
11. Holder with stirrups
12. Damper arm, trolley and fuse box

Complete catalogue (low res in serbian with data) here