ABB MNS-SG Operation And Maintenance Manual page 34

Low voltage metal-enclosed drawout switchgear
Table of Contents

Advertisement

If the top plate has to be modified for the incoming
conduit, remove the lifting angle and top plate to perform
the modifications. Do not drill or cut the top plate while
still attached to the section. This prevents metal chips
from falling into the section, which can cause serious
damage to the equipment.
Lug assemblies
E2.2 breaker connection table
Section
Contt current
width
600
700
1200
800
1000
600
700
1600
800
1000
E4.2 breaker connection table (1600A and 2500A)
Section
Contt current
width
700
800
1600
1000
700
800
2500
1000
E2.2 & E4.2 breaker connection table (2000A)
Section
Vertical runback
width
coupling
600
700
2 x 3/8" x 4"
800
1000
E6.2 breaker connection table
Section
Vertical runback
width
coupling
1000
4 x 3/8" x 5"
34 MNS-SG Operation and Maintenance | Manual
Vertical runback
coupling
2 x 1/4" x 3"
2 x 1/4" x 4"
Vertical runback
coupling
2 x 1/4" x 4"
4 x 1/4" x 4"
Size of lug
Number of lugs
connector
6
2 x 3/8" x 4"
Number of lugs
11
After modification, replace the top plate and lifting angle
bolts to guard against dust or dirt from entering from the
top. The lifting angle bolts can also be removed and the holes
plugged. See Crane Handling in this manual.
Optional bottom plates can be removed for modification. For
approximate section base dimensions and ground bus
locations, refer to the elevation and floor plan drawings
shipped with the switchgear.
Size of lug
Number of lugs
connector
4
2 x 1/4" x 3"
5
2 x 1/4" x 4"
Size of lug
Number of lugs
connector
5
2 x 1/4" x 4"
7
4 x 1/4" x 4"
E4.2 breaker connection table (3200A)
Section
Vertical runback
width
800
6 x 1/4" x 4"
Size of lug
connector
4 x 3/8" x 5"
Number of lugs
coupling
9
Size of lug
connector
6 x 1/4" x 4"

Advertisement

Table of Contents
loading

Table of Contents