EN 12841:2006, ANSI Z359.4:2013 for rope 10.5 -11.5mm
L 200 x W 83 x D 80mm (including handle)
Minimum Breaking Strength:
The D4 Work/Rescue Descender allows precise control at slow or fast speeds by using an innovative progressive cam action. One cam operates within another cam to offer smooth control. Whenever the operator lets go of the handle an auto-lock function will initiate.