Method for expanding the range of adjustment devices for overload protection, overload protection devices associated with it, and its use

摘要

Method for expanding the range of adjustment devices for overload protection, overload protection devices associated with it, and its use.The present invention relates to an overload protection with a broad range of thermo mechanical adjustment to protect against current overload, the active components carry an electric current which is between the value of the current overload and zero.According to the invention, switching means are used which, in a preferred mode, comutam chain, in parallel, of a first bifurcation of the current to at least one second bifurcation current, at least one bifurcation of the current connected in parallel carregand A partial stream, which is between the value of overload current and zero.The overload protection device (102), are provided with contact means which are associated with active components in the two branched chain (1, 2) which can be connected in parallel with one another, in which at least one bifurcation of the chain can be connected. Switched by means of switching.In an alternative mode, a first and a second bifurcation current is electrically connected in series by means of switching, as a result of which it is possible to switch a fit range superior to another fit range lower fit range wide.