Release with adjusting knob having adjustable short circuit multiple

Disclosed is a release with an adjusting knob having an adjustable short circuit multiple. The adjusting surface on the adjusting knob is arranged to be a shift surface and a slide surface which are alternatively arranged so that shift adjustment of a short-circuit release current multiple can be realized. Due to arrangement of different shift surfaces and slide surfaces, when current with a short-circuit multiple is switched, workers can obviously feel the change of a force value of each shift, so that the workers can more accurately arrange the multiple of short-circuit release current. Through arrangement of heights of the different shift surfaces, adjustment of each docking height is realized, and different short-circuit relapse current multiples are enabled to meet the requirements of national standards.