TD231 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – Technical Specifications for 5 kA, Normal-Duty Distribution 4.5 kV and 5 kV VariSTAR MOV Disks

SUBJECT: Technical Specifications for 5 kA, Normal-Duty
Distribution 4.5 kV and 5 kV VariSTAR^® MOV Disks
Technical Data
TD-231
APPLICATION
The VariSTAR MOV (Metal Oxide Varistor) disks described in this Technical Data sheet are for
use as active elements in IEC 5 kA and ANSI Normal-Duty Distribution Class Surge Arresters,
when applied in an appropriately designed arrester.
Polymer Housed Arrester Designs:
Use the glass collared AV5NG series VariSTAR disks, when applying disks to a polymer housed
arrester, where the dielectric strength of the material in direct contact with the disks exceeds the
dielectric strength of air.
Porcelain Housed Arrester Designs:
Option 1.
Use the glass collared AV5NG series VariSTAR disk together with an Epoxy Film Tape, as
described in technical data sheet TD-241, when applying disks in a porcelain housed arrester,
where the material in direct contact with the VariSTAR disks is equal to the dielectric strength of air.
Option 2.
Use the epoxy collared AV5NE series VariSTAR disks, when applying disks in a porcelain
housed arrester, where the dielectric strength of the material in direct contact with the disks is
equal to the dielectric strength of air.
Electrical properties for AV5NG and AV5NE series VariSTAR disks are otherwise identical.
Catalog Number reference:
AV5 = Disk Size
N = Normal-Duty, 5 kA
G/E = Glass or Epoxy Collar
PA/PB = Rating Designation
Ø32.7 ±0.28
Ø32.6 ±0.254
GLASS
INSULATING
0.051 ±0.013 ^COLLAR
Ø33.31
+0.534
-0.382
Ø32.6 ±0.254
0.051 ±0.013
0.356
+0.140
-0.064
34.63 ±0.3
34.63 ±0.3
GLASS
INSULATING
COLLAR
(TRANSLUCENT)
MOV DISK
AV5NG
METALIZED
ELECTRODE
(TO EDGE OF DISK)
EPOXY INSULATING
COLLAR
(SOLID GREY)
Surface Area = 8.64 cm²
Volume
= 28.78 cm³
Figure 1
Dimensions AV5NG VariSTAR Disk and AV5NE VariSTAR Disk in mm
November 2003 Supersedes 11/02
File Ref: 235
Page 1 of 6
MOV DISK
AV5NE
METALIZED
ELECTRODE
(TO EDGE OF DISK)