SIOV metal oxide varistors Block varistors, HighE series Series/Type: B722* Date: April 2011 EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited.Block varistors B722* HighE series Construction Disk-shaped varistor element, potted in plastic housing Housing and potting flame-retardant to UL 94 V-0 Screw terminals M4 (SIOV-B32 40) Screw terminals M5 (SIOV-B60 80) Features Heavy-duty varistors (surge current capability up to 100 kA) Wide operating voltage range 75 1100 V RMS SIOV-B40 also available without housing (LS40 series) PSpice models Approvals UL CSA ( K130) Delivery mode Cardboard box General technical data Climatic category to IEC 60068-1 40/85/56 Operating temperature to CECC 42 000 40 ... + 85 C Storage temperature 40 ... +110 C Electric strength to CECC 42 000 2.5 kV RMS Insulation resistance to CECC 42 000 10 M Response time < 25 ns Maximum torque for B32 and B40 types 1.0 Nm Maximum torque for B60 and B80 types 2.5 Nm Please read Cautions and warnings and Page 2 of 22 Important notes at the end of this document.