Viessmann 6049 – 24x pins socket on board

Plug-in rail for interior lighting or other applications.
Two poles, twelve sockets for each pole.

The sockets are the right size to tight-fit accept electrical components like resistors diodes etc of most common size and wattage and single core thin wires. No extra plug, screw terminals or soldering required, but of course you may solder if you wish a permanent connection.