ABB MNS-SG Operation And Maintenance Manual page 28

Low voltage metal-enclosed drawout switchgear
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Insulation Boots and Cable Supports to be removed
c)
Remove the Copper bars for field cable connections
if applicable.
d) Remove the rear cover (GPO3 or metal sheet) to
access the Main Bus bar area.
Copper bars and cover to be removed
28 MNS-SG Operation and Maintenance | Manual
The only space for access to the connections and put the
hand and the torque wrench is between Phase B & Phase C,
also between Phase A and Neutral bus bar.
Access for connect the links of Bus Bars
The maximum gap between the left and right busbar is
0.9 in +/- 0.1 (25 mm +/- 3)

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