Surge arrester 3-electrode arrester Series/Type: T61-C350X Ordering code: B88069X7700B102 Version/Date: Issue 03 / 2006-06-22 Version: 01 Content of header bars 1 and 2 of data sheet will be automatically entered in headers and footers Please fill in the table and then change the color towhit (or invisible). This ensures that the table disappears for the customer PDF. To update the data sheet, click on the symbolPrevie and thenClos. Please do not alter the header or footer when copying the content. 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: B88069X7700B102 (top right header bar) Series/Type: T61-C350X (top right header bar) EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited. EPCOS AG is a TDK Group Company. Surge arrester B88069X7700B102 3-electrode arrester T61-C350X Features Applications Very fast response time Branch Exchange (MDF) Maximum current rating Line protection Stable performance over life Station protection Low capacitance High insulation resistance RoHS-compatible Electrical specifications 1) 2) 4) DC spark-over voltage 400 V % 25 4) Impulse spark-over voltage at 100 V/s - for 99 % of measured values < 800 V - typical values of distribution < 700 V at 1 kV/s - for 99 % of measured values < 900 V - typical values of distribution < 800 V 5) Nominal impulse discharge current (wave 8/20 s) 20 kA 5) Single impulse discharge current (wave 8/20 s) 40 kA 5) Nominal alternating discharge current (50 Hz, 1 s) 20 A 5) Alternating discharge current (50 Hz, 9 cycles) 130 A 4) Insulation resistance at 100 V > 10 G dc 4) Capacitance at 1 MHz < 1.5 pF 3) Transverse delay time < 0.2 s Arc voltage at 1 A ~ 35 V Glow to arc transition current ~ 1 A Glow voltage ~ 200 V Weight ~ 4 g Operation and storage temperature -40 ... +90 C Climatic category (IEC 60068-1) 40/ 90/ 21 Marking, blue 350 YY O 350 - Nominal voltage YY - Year of production O - Non radioactive 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 KB AB E / KB AB PM Issue 03 / 2006-06-22 Please read Cautions and warnings and Page 2 of 4 Important notes at the end of this document.