Siemens SIMOTICS XP - Terminal Marking; Additional Bores in the Terminal Box; Cable Entry

Electrical connection
6.3 Connecting the grounding conductor
1MB..5/6 shaft height 71 ... 355
Operating Instructions, 07/2020, A5E41926185A
73
6.3.1 Grounding connection type
Shaft
height
Enclosure grounding method
71 ... 112
Cable connection with free cable
Cable connection with cable lug
(DIN 46234; JB/T2436.1)
132 ... 355
Cable connection with free cable
Cable connection with grounding strap
Cable connection with cable lug
(DIN 46234; JB/T2436.1)
The additional threaded hole on the grounding socket is optionally available for additional
equipotential bonding of high-frequency voltages and currents in converter operation.