Siemens 1MB115 Installation And Maintenance Manual page 105

4.4.1 Grounding connection type
Frame size
The additional threaded hole on the grounding socket is optionally available
for additional equipotential bonding of high-frequency voltages and currents
in converter operation.
Enclosure grounding method
Cable connection with
free cable
Cable connection with
80 ... 112
cable lug
(DIN 46234; JB/T2436.1)
Cable connection with
free cable
Cable connection with
grounding strap
132 ... 355
Cable connection with
cable lug
(DIN 46234; JB/T2436.1)
105