Multi-stage transmission

A multi-stage transmission in planetary design, particularly an automatic transmission for a motor vehicle, comprising one input shaft (1) and one output shaft (2) located in one housing (g), first, second and third single-web planetary gear sets (P1, P2, P3), at least seven rotatable shafts (1, 2, 3, 4, 5, 6, 7), at least six shifting elements (03, 04, 14, 36, 56, 57), including brakes and clutches, the selective engagement of which produces different reduction ratios between the input shaft (1) and the output shaft (2) so that eight forward gears and two reverse gears can be implemented, input results by one first shaft (1) permanently connected with one element of the planetary gear set (P1), output results via one second shaft (2) permanently connected with a ring gear of the second planetary gear set (P2) and a ring gear of the third planetary gear set (P3), one third shaft (3) is permanently connected with one other element of the first planetary gear set (P1), one fourth shaft (4) is permanently connected with a web of the second planetary gear set (P2) and a web of the third planetary gear set (P3), one fifth shaft (5) is permanently connected with a ring gear of the first planetary gear set (P1), one sixth shaft (6) is permanently connected with a sun gear of the second planetary gear set (P2), one seventh shaft (7) is permanently connected with a sun gear of the third planetary gear set (P3), the third shaft (3) is attachable to the housing (g) by one first brake (03), the fourth shaft (4) is attachable to the housing (g) by one second brake (04), one first clutch (14) detachably interconnects the input shaft (1) and the fourth shaft (4), one second clutch (36) detachably interconnects the third shaft (3) and the sixth shaft (6), one third clutch (56) detachably interconnects the fifth shaft (5) and the sixth shaft (6) and one clutch (57) detachably interconnects the fifth shaft (5) and the seventh shaft (7).