The Phoenix Contact ZB 5,QR:FORTL.ZAHLEN 11-20 marker strip provides a simple and effective solution for identifying terminal blocks. This 10-section strip is labeled with consecutive numbers from 11 to 20, ensuring clear and organized identification. The white color enhances visibility, making it suitable for a wide range of industrial environments. It is commonly used in electrical panels, control cabinets, and other applications where terminal block identification is crucial for maintenance and troubleshooting. The marker strip is designed for easy application and long-lasting durability.