E4-1 Energy Chain combines the features and benefits of its three predecessors in the E4 cable carrier range, including low noise, ruggedness and modularity. E4-1 is ideal for a wide range of industrial applications such as cranes, machine tools, construction machinery and robotic handling systems. E4-1 features an easy-to-open, double-lock design, which allows the cable carrier to be opened and closed using a flathead screwdriver.