Eaton Corporation
Electrical Sector
1111 Superior Ave.
Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
Eaton.com
© 2011 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. IB02102006E / Z11145
May 2011
Eaton is a registered trademark
of Eaton Corporation.
All other trademarks are property
of their respective owners.
Instructional Booklet IB02102006E
Effective May 2011
Type MVS (previously WLI)
metal-enclosed switchgear—
4.76 kV, 15.0 kV, 27.0 kV, and 38.0 kV
MVS switchgear bolt tightness for bus
connections and connections to switch
terminal pads
Use the following torque values for tightening hardware where
conductors are connected to each other or to switch terminal pads.
Table 8. Hardware Torque Values
Bolt Diameter
Decimal Size
Inches (mm)
Bolt Diameter
Standard
Nominal Torque
ft-lb (Nm)
0.250 (6.35) 1/4–20 4 (5.42)
0.312 (7.93) 5/16–18 8 (10.85)
0.375 (9.53) 3/8–16 25 (33.90)
0.500 (12.70) 1/2–13 50 (67.80)
0.625 915.88) 5/8–11 65 (88.13)
Common renewal parts
Table 9. Common Renewal Parts
Part Description
Quantity
per Switch
Style
Number
Three-pole blade and break jaw assembly kit,
600A, 4.76/15 kV
1 7278A27G01
Three-pole blade and break jaw assembly kit,
1200A, 4.76/15 kV
1 7278A27G02
Three-pole blade and break jaw assembly kit,
27/38 kV
1 7278A27G05
Barrier assembly kit, interphase, 4.76/15 kV 1 7278A27G24
Barrier assembly kit, interphase, 27/38 kV 1 7278A27G25
Insulator, glass polyester, 4.76 kV 6 4892A97H01
Insulator, glass polyester, 15 kV 6 4892A97H02
Insulator, epoxy, 4.76 kV 6 4892A97H07
Insulator, epoxy, 15 kV 6 4892A97H08
Insulator, epoxy, 27/38 kV 6 4892A97H18
Drive rod link kit, glass polyester, 4.76 kV 1 7278A27G09
Drive rod link kit, glass polyester, 15 kV 1 7278A27G10
Drive rod link kit, glass polyester, 27/38 kV 1 7278A27G12
Contact grease, 2 oz jar As required 7274A48H02
Mechanism grease, 1 lb container As required 53701AI02E
Auxiliary switch assembly kit 1 221C395G01
4.76/15 kV MVS bus support polyester/nylon,
8.00-inch centers
As required 260C003H01
4.76/15 kV MVS bus support polyester/epoxy,
8.00-inch centers
As required 260C265H01
4.76/15 kV MVS bus brace,
three-conductor polyester/nylon, 8.00-inch centers
As required 260C005H01
4.76/15 kV MVS bus brace,
three-conductor polyester/epoxy, 8.00-inch centers
As required 260C266H01
4.76/15 kV MVS bus brace,
two-conductor polyester/nylon, 8.00-inch centers
As required 260C005H03
4.76/15 kV MVS bus brace,
two-conductor polyester/epoxy, 8.00-inch centers
As required 260C266H03
Fuse live parts kit, RBA200 4.76 kV (MVS) As required 98A1125G22
Fuse live parts kit, RBA200 15 kV (MVS) As required 98A1125G23
Fuse live parts kit (WLI), RBA200 25.8 kV or 38 kV As required 7278A27G31
Fuse live parts kit, RBA400 4.76 kV (MVS) As required 98A1125G24
Fuse live parts kit, RBA400 15 kV (MVS) As required 98A1125G25
Fuse live parts kit (WLI), RBA400 25.8 kV or 38 kV As required 7278A2732
Fuse live parts kit (WLI), NX 27 kV As required 7278A27G41
Fuse live parts kit (WLI), EJO-1 38 kV As required 7278A27G42
Set of fuse barriers (4.76/15 kV Class MVS) As required 7278A27G43
Set of fuse barriers (27 kV Class or 38 kV Class WLI) As required 7278A27G25
4.76 kV fuse live parts kit, CLE, 3.00-inch diameter,
Ferrule single barrel, 4.76 kV MVS
As required 98A1125G03
4.76 kV fuse live parts kit, CLE, 3.00-inch diameter,
Ferrule single barrel, 4.76 kV MVS
As required 98A1125G04
15 kV fuse live parts kit, CLE, 3.00-inch diameter,
Ferrule double barrel, 15 kV MVS
As required 98A1125G05
15 kV fuse live parts kit, CLE, 3.00-inch diameter,
Ferrule double barrel, 15 kV MVS
As required 98A1125G06
Space heater, 125V, 250W As required 3614A50H01
Space heater, 250V, 250W As required 3614A50H02
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