APPENDIX
Installation Instructions for SIS Bus Bar Systems A2MS001EN revision R05
114 / 130
E
CHECKING WHETHER EARTHING VIA EARTHING NUT APPLIES
Fig. 111: unearthed earthing nut at a bus
bar
Fig. 112: earthed earthing nut at a bus bar
When the earthing via earthing nut applies, every bus
bar features one M10 thread directly applied to the
bus bar like shown in Fig. 111 and Fig. 112.