EF470X Datasheet, PDF (3/4 Pages) EPCOS – 2-electrode arrester

Surge arrester
2-electrode arrester
Dimensional drawing
B88069X5080xxxx ^a)
EF470X
Not to scale
Dimensions in mm
Non controlled document
Cautions and warnings
ƒ Surge arrester must be selected so that the maximum expected follow current can be quenched.
ƒ The follow current must be limited so that the arrester can be properly extinguished when the
surge has decayed. The arrester might otherwise heat up and ignite adjacent components.
ƒ Surge arresters must not be operated directly in power supply networks.
ƒ Surge arresters may become hot in case of longer periods of current stress (danger of burning).
ƒ Surge arresters may be used only within their specified values. In case of overload, the head
contacts may fail or the component may be destroyed.
ƒ Damaged surge arresters must not be re-used.
KB AB E / KB AB PM
Please read Cautions and warnings and
Important notes at the end of this document.
Page 3 of 4
Issue 04 / 2006-11-07