Phoenix Contact 1051430 The marker for the terminal block is a strip that can be labeled with markings such as CMS-P1-PLOTTER and printed horizontally with letters U, V, W and N, also including GND labels. The markers are mounted using a latching system, suitable for terminal blocks of 6.2 mm width. There are 10 individual labels available on the strip, with a text field height of 10.5 mm and a corresponding text field width of 6.15 mm.