86 ACS2000 DFE UM 3BHS360367 ZAB E01 REV. K
Bolted connections
Material requirements
Use stainless steel bolts and nuts with the appro-
priate steel grade and property class for the con-
nection (recommended: A2-70 [designation
according to ISO 3506]).
Nuts with bonded coating can be used as an alter-
native to uncoated stainless steel nuts.
Connection type
The following connection type is recommended
when a cable lug (4) is connected to a busbar:
• Spring washer (1) and flat washer (2) on each
side of the busbar (3).
Other washers can be used, provided they
maintain the required contact pressure.
• Cable lugs suitable for M12 bolts.
Lubrication
If stainless steel bolts and nuts are used, lubricate
the thread and head contact surface of the bolt
using recommended pasts, eg, Molykote D paste.
If a coated nut (eg, with bonded
molybdenum-disulfide [MoS
2
]
coating) is used, the connection
does not have to be lubricated.
Tightening torque
Tighten bolted connections with bolts of sizes M10
and greater with the recommended nominal
torque for the bolt size used.
6-7 Bolted busbar
connection
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