Ideal for connecting identical and unidentical conductor cross-sections. For connecting different conductor types and materials in accordance with VDE 0295 Class 1 and 2 and Al conductors in accordance with DIN 48201 Part 5. Special groove profile inside to destroy the oxidation layer when screwing. Insulated clamp body. Version with 2 screws and center bar. Blank. Clamp body: high-strength aluminum alloy.