Phoenix Contact 3273988 A distribution block features a basic terminal block with supply settings of 450 V and 41 A nominal voltage and current. It has seven connection options utilizing push-in connections, with rated cross sections ranging from 4 mm² to accommodate various load contacts that also utilize push-in connections and line contacts rated at 10 mm². The line contacts have smaller cross sections ranging from 0.5 mm² to 10 mm². The block is mounted using an adhesive method and has a gray color.