Surge arrester
3-electrode arrester
Series/Type: EZ3-A250X
Ordering code: B88069X6061B502
Version/Date: Issue 02 / 2007-09-06
Version: 6
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Identification/Classification 1: Surge arrester
(header 1 + top left header bar)
Identification/Classification 2: 3-electrode arrester
(header 2 + bottom left header bar)
Ordering code: B88069X6061B502
(top right header bar)
Series/Type: EZ3-A250X
(top right header bar)
Preliminary data (optional):
(if necessar EPCOS AG y) 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
Department: KB AB E / KB AB PM
Date: Issue 02 / 2007-09-06
EPCOS AG is a TDK Group Company.
Surge arrester B88069X6061B502
3-electrode arrester EZ3-A250X
Features Applications
Extremely small size Branch exchange (MDF)
Fast response time Line protection
High current rating Station protection
Stable performance over life
Very low capacitance
High insulation resistance
RoHS-compatible
Electrical specifications
1) 2) 4)
DC spark-over voltage 250 V
%
20
4)
Impulse spark-over voltage
at 100 V/s - for 99 % of measured values < 600 V
- typical values of distribution < 450 V
at 1 kV/s - for 99 % of measured values < 750 V
- typical values of distribution < 600 V
Service life
5)
10 operations 50 Hz, 1 s 5 A
5)
1 operation 50 Hz, 0.18 s 5 A
5)
10 operations [5x (+) & 5x ()] 8/20 s 5 kA
5)
1 operation 10/350 s 1 kA
5)
300 operations (alternating polarity) 10/1000 s 200 A
4)
Insulation resistance at 100 V > 1
dc G
4)
Capacitance at 1 MHz < 1.5 pF
3)
DC holdover voltage
at 135 V / 1300 < 150 ms
dc
3)
Transverse delay time < 0.2 s
Arc voltage at 1 A ~ 10 V
Glow to arc transition current ~ 1 A
Glow voltage ~ 80 V
Weight ~ 0.8 g
Operation and storage temperature -40 ... +90 C
Climatic category (IEC 60068-1) 40/ 90/ 21
Marking, blue, negative
EZ 250 YY O
EZ - Series
250 - Nominal voltage
YY - Year of production
O - Non radioactive
KB AB E / KB AB PM Issue 02 / 2007-09-06
Please read Cautions and warnings and Page 2 of 4
Important notes at the end of this document.