GST15i3 Mini Distribution Block. Wieland Gesis Mini GST15i3 distribution blocks are ideal for lighting and other power applications, mechanically coded for ease of assembly and to prevent misconnections. These GST15i3 series are available in a variety of output configurations and are compatible with all of the GST15i3 range of connectors and cable assemblies which gives you the ability to build complex network installations using just four basic components, plug and socket connectors, panel mount connector, distribution block and cable assemblies which are available in many lengths. Main power supply, 3 pole, white coding Rated at 250V, 16A