12-00515 ISDN Protection ZAR 855.60 Plug & Play. SKU: 12-00515 More DetailProduct Category: Computers & Electronics, Data & Telephone LinesApplications: ISDN dataline, telecommsThe BT version is suitable for ISDN applications. Features Fully graded protection Compact design High discharge current capability Easy installation Dimensions: 66 × 65 × 29 mmSpecifications: 12-00515 ISDN Protection