PTFIX distribution and collection blocks In contrast to the PTVFIX distribution blocks, the PTFIX distribution blocks are characterised by their front push-in connection technology. The blocks have integrated bridging, which means that each block has a single potential. This feature makes the distribution and collection blocks ideal for economical load and control current distribution. The PTFIX blocks come with 4, 6, 12 and 18 terminal points as well as single blocks with two terminal points. The distribution blocks are available with or without an additional line contact. You can choose between 1.5, 2.5 and 4 mm² for the nominal cross-section. In addition, distributor blocks with a nominal cross-section of 10 mm² are also available. Simple colour assignment of conductors and terminal point is ensured thanks to the variety of 15 colours (10 mm² = 5 colour variants).