Märklin 72021 H0 Short Coupling with Electrical Connection 1 Set. H0 2-piece set of electrically conductive short couplings. Features: separable short coupling with a single-pole electrical connection, suitable for the preparatory cars measuring 26.4 cm, 27 cm, 28.2 cm, length when installing interior lighting 73400. One car in the train set requires a collector 73404, 73405, or 73406. Includes 2 short coupling heads for standard coupling sockets with contacts, 2 contact sets for the coupling shafts, 1 ground spring for the bogie, 2 connection cables, installation instructions. Reliable connection with locking contacts. Manual coupling and uncoupling on the layout is possible. Coupling is also possible with standard short couplings without electrical contact. Technical specifications: Age group: from 15 years, type (model railway): accessories, scale: H0, manufacturer number: 72021, coupling features: electrically conductive, product type: short coupling, power system: AC. Delivery includes: 2 short coupling heads, 2 contact sets, 1 ground spring, 2 connection cables, instructions.