Surge arrester 2-electrode arrester Series/Type: A81-A75X Ordering code: B88069X3881**** Version/Date: Issue 04 / 2012-11-20 Version: 6 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: 2-electrode arrester (header 2 + bottom left header bar) Ordering code: B88069X3881**** (top right header bar) Series/Type: A81-A75X (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: PPD AB PD / PPD AB PM Date: Issue 04 / 2012-11-20 EPCOS AG is a TDK Group Company. Surge arrester B88069X3881**** 2-electrode arrester A81-A75X Features Applications Standard size Tower mounted amplifier Very high current rating Consumer electronic Fast response time Alarm systems Stable performance over life Very low capacitance High insulation resistance RoHS-compatible Electrical specifications 1) 2) DC spark-over voltage 75 V % 20 Impulse spark-over voltage at 100 V/s - for 99% of measured values < 350 V - typical values of distribution < 300 V at 1 kV/s - for 99% of measured values < 650 V - typical values of distribution < 600 V Service life 10 operations 50 Hz, 1 s 20 A 10 operations 5 (+) & 5 () 8/20 s 20 kA 1 operation 8/20 s 25 kA 1 operation 10/350 s 2.5 kA Insulation resistance at 50 V > 10 DC G Capacitance at 1 MHz < 1.5 pF Arc voltage at 1 A ~ 15 V Glow to arc transition current ~ 0.6 A Glow voltage ~ 60 V Weight ~ 1.5 g Operation and storage temperature -40 ... +125 C Climatic category (IEC 60068-1) 40/ 125 / 21 Marking, blue negative 75 YY O 75 - Nominal voltage YY - Year of production O - Non radioactive 1) At delivery AQL 0.65 level II, DIN ISO 2859 2) In ionized mode Terms in accordance with ITU-T Rec. K.12, IEC 61663-2 and IEC 61643-311. PPD AB PD / PPD AB PM Issue 04 / 2012-11-20 Please read Cautions and warnings and Page 2 of 4 Important notes at the end of this document.