Suitable for a sub-distribution board equipped with a residual current breaker (RCB); includes all required components for wiring supply terminal blocks, as well as connecting 9 AC circuits and 1 three-phase circuits. Distribution of ground fault potentials via one 10 x 3 mm N-busbar. Separation of N-potentials for insulation resistance measurement via N-disconnect slide links within the multilevel installation terminal block. Contains: 10 x multilevel installation terminal block; NT/L/PE; 4 mm² (2203-7541) 1 x multilevel installation terminal block; L/L; 4 mm² (2203-7542) 1 x end and intermediate plate (2203‑7692) 3 x 2-conductor supply terminal block for distribution boxes; gray; 16 mm² (2016‑7601) 1 x 2-conductor supply terminal block for distribution boxes; blue; 16 mm² (2016‑7604) 1 x 2-conductor ground terminal block; green-yellow; 16 mm² (2016‑7607) 1 x end and intermediate plate (2016‑7692) 1 x 1-conductor N-disconnect terminal block; blue; 16 mm² (2016‑7714) 1 x end and intermediate plate (2016‑7792) 1 x screwless end stop; 10 mm wide (249‑117) 1 x busbar carrier; with end stop function (2009‑305) 1 x busbar; tin-plated; 0.2 m (210‑133) 1 x busbar cover; transparent; 0.2 m (777‑303) 1 x marking strip; white; 0.5 m (2009-110) 1 x WMB marker card; 1 … 50 (793‑5566) 1 x WMB marker card; L1, L2, L3, N, PE (793‑5472) 1 x felt-tip pen (210‑110)