The FUSE fall arrester by EDELRID is the only securing device in the market for a payload of up to 140 kg that meets all applicable standards in Europe and North America. From the first meter it moves along the rope with unprecedented ease. This is achieved by a new, sophisticated attachment at the lever arm. The separation of the blocking mechanism and its speed-dependent activator improves the reliability and safety of the device. The device reduces wear and prevents tearing of the rope, and ensures the blocking can be released without completely relieving the load. This is achieved by waiving at a toothing of the clamping cam. If needed, clamping can be activated by means of a practical lock function. FUSE can be attached to and removed from the rope without separating it from the carabiner.