The two-component handles support and complement the ergonomic advantages of the pliers series for the electrical installation. A sophisticated separation in a softer pressure zone and a stronger movement zone was given to them. Together with the shaped thumb swale for pulling and pushing the pliers, a precise and secure guiding is guaranteed. The permanently injected “double triangle symbols” and “1000 V” symbols at the collar that is also visible if the handles are embraced, exclude confusions with non-insulated pliers. They identify the tool with the VDE-safety rules for working tested 10-fold safety for live working.