Surge Arrester 2-Electrode-Arrester A61-A350XF Ordering code: T. B. D. Preliminary data DC spark-over voltage 1) 2) 350 ± 20 V % < 750 < 680 V V < 900 < 750 V V Nominal impulse discharge current (wave 8/20 µs) Single impulse discharge current (wave 8/20 µs) 3) 10 20 kA kA Nominal alternating discharge current (50 Hz, 1 s) Alternating discharge current (50 Hz, 9 cycles) 10 > 40 A A Service life 1000 operations 100 A Insulation resistance at 100 Vdc > 10 GΩ Capacitance at 1 MHz < 1.5 pF Arc voltage at 1 A Glow to arc transition current Glow voltage < 20 < 0.5 ~ 60 V A V Weight ~ 1.5 g Storage temperature -40 ... +90 °C Climatic category (IEC 60068-1) 40/ 90/ 21 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 10/1000 µs 350 YY O Marking, red 350 YY O - Nominal voltage - Year of production - Non radioactive 1) At delivery AQL 0.65 level II, DIN ISO 2859 In ionized mode 3) 8 After load: Insulation resistance >10 Ω, Impulse spark-over voltage < 1000 V Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845 2) AB E / AB PM Issue 03, 04.04.2002 Page 1 of 2 Surge Arrester 2-Electrode-Arrester A61-A350XF Ordering code: T. B. D. Preliminary data 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 Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed. AB E / AB PM Issue 03, 04.04.2002 Page 2 of 2