The Phoenix Contact PMH 0:ZAHLEN 3 conductor marking collar provides a simple and effective method for identifying conductors in electrical systems. This collar is horizontally labeled with the number '3' and is designed to fit conductor diameters between 1.4 and 2.5 mm. Its yellow color offers clear visual distinction, making it ideal for use in industrial automation, control panels, and other electrical applications where clear conductor identification is crucial for maintenance and troubleshooting. The collar's compact size (3.2 mm width) ensures minimal space impact within crowded terminal blocks or wiring harnesses.