B88069X4521B502 Datasheet, PDF (3/4 Pages) EPCOS – Surge arrester 3-electrode arrester

Surge arrester
3-electrode arrester
1) _{At delivery AQL 0.65 level II, DIN ISO 2859}
2) _{In ionized mode}
3) _{Test according to ITU-T Rec. K.12}
4) _{Tip or ring electrode to center electrode}
5) _{Total current through center electrode, half value through}
tip respectively ring electrode.
Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845
Arrester fail safe works at temperatures > 260 °C. The arrester has to be
fixed mechanically, if the arrester is contacted by soldering and if the solder
temperature is less than 260 °C.
Dimensional Drawing
B88069X4521B502
EZ3-A250XF1
Not to scale
Dimensions in mm
Non controlled document
Cautions and warnings
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.
ƒ Surge arrester with triggered short-circuit mechanism 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 02 / 2007-09-06