Siemens NXPLUS C Installation And Operating Instructions Manual page 115

Preparing busbar
elements
802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11
Assembling the 1250 A busbar
➭ Check all supplied busbar elements for completeness, cleanliness and proper condition.
➭ Apply mounting paste to the brushed copper surfaces evenly and over the whole surface.
➭ Screw the threaded stud M12/M16 ⑪ into the bushing with a screwdriver size 10x1.6 with
approx. 10 Nm (hand-tight). Important: Check reference dimension (79++2/-6 mm).
➭ Brush oxidized copper surfaces (busbar ends and bushings).
➭ Clean the push-on surfaces of the busbars (gray surfaces), cast-resin cones and outside
cones of the bushings with a lint-free wiping cloth and mounting paste.
➭ Do not apply mounting paste to the push-on surfaces until right before assembly.
➭ Distribute the mounting paste evenly over the surfaces.
➭ Apply mounting paste to the lower and lateral push-on surfaces of the end adapters ⑤ and
cross adapters ⑩ .
➭ Apply mounting paste to the push-on surfaces (gray surfaces) of the busbars ③ .
➭ Lay the contact half-shells ③ on the ends of the busbar ② and hold them.
INFORMATION
Installation
115/293