Siemens Simatic S7-400 - Manual (Page 74)

Racks
2-4
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the UR1 and UR2 Racks
Rack UR1 UR2
Number of single-width slots 18 9
Dimensions W x H x D (in mm) 482.5 x 290 x 27.5 257.5 x 290 x 27.5
Weight (in kg) 3
4.1 as of version 03
1.5
2.15 as of version 04
Buses I/O bus and communication bus