Surge arrester 2-electrode arrester Series/Type: EF270X Ordering code: B88069X4131**** Version/Date: Issue 04 / 2013-09-16 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: B88069X4131**** (top right header bar) Series/Type: EF270X (top right header bar) Preliminary data (optional): EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information (if necessary) contained therein without EPCOS prior express consent is prohibited. Department: PPD AB PD / PPD AB PM Date: EPCOS AG is a TDK Group Company. Issue 04 / 2013-09-16 Surge arrester B88069X4131**** 2-electrode arrester EF270X Features Applications Standard size Application with high follow current High follow current capability Power supply Very fast response time Stable performance over life Very low capacitance High insulation resistance RoHS-compatible Electrical specifications 1) 2) DC spark-over voltage 230 ... 338 V Impulse spark-over voltage at 100 V/s - for 99% of measured values < 500 V - typical values of distribution < 450 V at 1 kV/s - for 99% of measured values < 550 V - typical values of distribution < 500 V Service life 10 operations 50 Hz, 1 s 5 A 1 operation 50 Hz, 0.18 s (9 cycles) 65 A 10 operations 8/20 s 5 kA 1 operation 8/20 s 10 kA 3) Max. follow current during one voltage half cycle at 50 Hz 200 A Insulation resistance at 100 V > 10 DC G Capacitance at 1 MHz < 1.5 pF Arc voltage at 1 A ~ 22 V Glow to arc transition current < 0.5 A Glow voltage ~ 140 V Weight ~ 1.5 g Operation and storage temperature -40 ... +90 C Climatic category (IEC 60068-1) 40/ 90/ 21 Marking, red positive EF 270 YY O EF - Series 270 - 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) Follow current has to be limited by an appropriate varistor in series. Terminology in accordance with ITU-T Rec. K.12 IEC 61663-2 and IEC 61643-311. PPD AB PD / PPD AB PM Issue 04 / 2013-09-16 Please read Cautions and warnings and Page 2 of 5 Important notes at the end of this document.