ABB VersaRupter Installation, Operation And Maintanance Manual - page 40
VersaRupter MV Indoor Switch | Installation and Operation Manual
40
Installing the Back Connect Kit
These instructions apply for top and bottom mounting of
the back connect insulated bus bars. Reference back con-
nection kit outline drawings found towards end of manual
to identify parts.
1. When mounting the back connect kit, first secure the
brackets to the frame with the same bolts used to se-
cure the VersaRupter frame to its enclosure.
2. Attach the standoff insulators to the brackets provided
using 1/2” bolts.
3. Mount the insulated bus bars to the standoff insulators
using one 3/8” bolt, a steel 3/8” washer, and two red
washers.
4. Install the GPO-3 washers such that they are posi-
tioned on each side of the back connect bus bar to
protect the bus bar insulation. The steel 3/8” washer
should be between the GPO-3 washer and the head of
the 3/8” bolt.
5. The back connect bus bar is attached to the Ver-
saRupter terminals with the hardware provided with
the VersaRupter. The back connect bus bars may be
connected to cabling or bus work as needed. For die-
lectric purposes, bus boots may be installed at the
termination of the back connect bus bar and the field
connections.
6. Torque all hardware in accordance with standard
torque guidelines per the bolt sizes.