|Traction power supply|
|Third rail and Overhead wire|
| ATB max. 80km/h|
ZUB max. 100km/h
Along side with the RSG3 the SG3 stock was the fourth type of passenger rolling stock on the metro system of Rotterdam. The trains (5600 Series) were built between 2009 and 2011 and are completely identical to the RSG3 stock. The colour marks the only difference between the two series. The trains are mainly operational on Metrolijn A, B and C and elsewhere on the network if necessary. The fleet consists of 42 sets.
Another 16 sets (5700 Series) were build between 2015 and 2016 for Metrolijn A and B but the livery was not Decided.
The SG3 can Operate on all Electrified Lines. Ex: In Simvliet, the line A is equipped with ATB protection between Simvliet Airport and Stadionweg, and ZUB beyond. Previously, this prevented an exploitation with the same train, without changes. With the arrival of (R)SG3 (and the rebuilding of Stadionweg), a passenger who took the train at De Bergen, for example, can now directly go to Springstraat.