A81-A400X

Surge Arrester 2-Electrode-Arrester Preliminary data A81-A400X Ordering code: T. B. D. 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 400 ± 20 < 800 < 700 < 950 < 850 20 25 20 100 > 10 < 1.5 ~ 15 ~ 0.5 ~ 60 ~ 1.5 -40 ... +90 40/ 90/ 21 400 YY O 400 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) Insulation resistance at 100 Vdc Capacitance at 1 MHz Arc voltage at 1 A Glow to arc transition current Glow voltage Weight Operation and storage temperature Climatic category (IEC 60068-1) Marking, blue 1) 2) At delivery AQL 0.65 level II, DIN ISO 2859 In ionized mode Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845 AB E / AB PM Page 1 of 2 Issue 02, 18.04.2002 Surge Arrester 2-Electrode-Arrester Preliminary data A81-A400X Ordering code: T. B. D. Not to scale Dimensions in mm Non controlled document © EPCOS AG 2002. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Pro...