The Phoenix Contact ZB 5,QR:FORTL.ZAHLEN 51-60 marker strip provides a clear and durable labeling solution for terminal blocks. This 10-section strip is vertically labeled with consecutive numbers from 51 to 60, ensuring easy identification of individual terminals. The white color offers excellent contrast for readability. Ideal for electrical panels, control cabinets, and other industrial environments where organized and labeled connections are essential for efficient maintenance and troubleshooting. The marker strip is designed for use with Phoenix Contact terminal blocks and contributes to overall system reliability and safety.