Product information
Introduction
Eaton's Cooper Power™ series UltraSIL
®
polymer-housed
VariSTAR
®
surge arrester Class 1 and Class 2 MOV surge
arresters provide overvoltage protection to medium-
voltage electrical distribution systems.
Read this manual first
Read and understand the contents of this manual and
follow all locally approved procedures and safety practices
before installing or operating this equipment.
Additional information
These instructions cannot cover all details or variations
in the equipment, procedures, or process described nor
provide directions for meeting every possible contingency
during installation, operation, or maintenance. For
additional information, contact your Eaton representative.
Acceptance and initial inspection
Each surge arrester is inspected, tested at the factory.
It is in good condition when accepted by the carrier for
shipment. Upon receipt of a surge arrester, inspect the
surge arrester thoroughly for damage and loss of parts
incurred during shipment. If damage or loss is discovered,
file a claim with the carrier immediately.
Handling and storage
If the surge arrester is to be stored for an appreciable
time before installation, provide a clean, dry storage area.
Locate the surge arrester so as to minimize the possibility
of mechanical damage.
Standards
ISO 9001 Certified Quality Management System
CAUTION
Always handle surge arrester—packed or unpacked—
very carefully. Do not drop, jar, or handle an arrester
roughly. Dropping, jarring, and/or rough handling
may damage the arrester internally and/or externally,
making it incapable of adequately protecting the
apparatus or circuit on which it is to be installed
or it may shorten the service life of the arrester
significantly.
WARNING
Never install a damaged arrester. A damaged arrester
may misoperate violently, causing severe personal
injury and property damage.
CAUTION
Do not install an arrester if the voltage rating (Ur)
and COV (Uc) data are not exactly the same on the
arrester nameplate and the carton label. Do not install
the arrester if the COV (Uc) is less than the maximum
line to earth system voltage. Erroneous installation
may cause a violent fault on the system with the
potential for personal injury and property damage.
CAUTION
Make all electrical connections - ground and line - so
that no mechanical stress is applied to the surge
arrester. Mechanical stress may damage the arrester
in such a manner that its service life is shortened
significantly.
Figure 1. UltraSIL housed VariSTAR arrester.
LINE TERMINAL
STUD
GROUND
TERMINAL
STUD
IMPORTANT
This product as designed and packaged by Eaton has
been classified by the US DOT as not regulated as an
explosive.
1
ULTRASIL POLYMER-HOUSED VARISTAR SURGE ARRESTER IEC 60099-4 INSTALLATION INSTRUCTIONS
MN235005EN February 2016
