Busbar module insert for installation in the VLTM mounting rail. Additional modules VLM ... profiled, made of galvanized, white, silver (-SI) or black (-SW) coated sheet steel. Plastic-coated quick-release fastener for fastening to the mounting rail. The VLM ... modules can be placed variably between the VLG ... device carriers. Electrical adapter for flexible tapping of the power supply in the mounting rail. Color and optical coding for easy installation. Mechanical coding to prevent incorrect installation (twisting protection). Device carrier including universal busbar, 5+2 conductor system (L1, L2, L3, N, SL plus two control lines for DALI) for accommodating spotlights with 3-phase adapter. Color coding purple for installation in VLTM-7 or VLTM-11. All 3 phases are connected. Phase selection on the spotlight adapter. Can handle up to 3 x 16A + 2 x 10A. Device carrier length 1500 mm, usable busbar length L4 = 620 mm. Installation: Simple clipping for electrical contact and mechanical fastening in the system-bound LINIA support rail system. Mechanical coding to prevent incorrect installation (twisting protection).