Surge Arrester 2-Electrode-Arrester A81-C90XG Ordering code: B88069X3840T502 DC spark-over voltage 1) 2) Impulse spark-over voltage at 100 V/µs - for 99 % of measured values - typical values of distribution at 1 kV/µs - for 99 % of measured values - typical values of distribution 90 ± 20 500 450 600 550 20 25 20 100 10 1.
5 ~ 10 ~ 0.
5 ~ 60 ~ 1.
5 -40 .
.
.
+90 40/ 90/ 21 90 YY O 90 YY O - Nominal voltage - Year of production - Non radioactive V % V V V V kA kA A A GΩ pF V A V g °C Nominal impulse discharge current (wave 8/20 µs) Single impulse discharge current (wave 8/20 µs) Nominal alternating discharge current (50 Hz, 1 s) Alternating discharge current (50 Hz, 9 cycles) Insul...

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