Siemens SIRIUS Manual page 162

Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
Figure C-30 S0/S0 and S0/S00 direct-on-line starters, DC, screw-type connection system
Figure C-31 S0/S0 and S00/S0 reversing starters, DC, screw-type connection system
162
3RA2120-..D..-0BB4
3RA2220-..D..-0BB4
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003