The Phoenix Contact ZB 6,QR:FORTL.ZAHLEN 181-190 marker strip is a crucial accessory for terminal blocks, ensuring clear and consistent identification of circuits and connections. This 10-section strip is vertically labeled with consecutive numbers, facilitating easy tracking and troubleshooting in industrial automation, control panels, and electrical distribution systems. Its white color provides high contrast for readability, and the compact 6mm width makes it suitable for a wide range of terminal block applications. Proper labeling is essential for maintaining safety and efficiency in any electrical project, and this marker strip offers a reliable and durable solution.