TOPJOB®S sub-distribution set, for the main distribution with two residual current circuit breakers, contains all the components required for wiring a feed and connecting 9 alternating current and 1 three-phase circuit, distribution of the residual current potentials via 2 N busbars 10 x 3 mm, separation of the N potentials for the insulation resistance measurement via a separating slide in the installation level terminal
