Black Phase Discs

Our Black Phase Discs offer a simple yet reliable way to mark electrical phases. They help engineers, electricians, and maintenance teams work with greater accuracy and efficiency. As part of clear phase identification, they improve organisation on construction sites, in plant rooms, and across facilities.

Because they are supplied on easy-to-handle sheets, these discs are quick to store, transport, and apply. This format also makes it easier to select the correct size for the job, reducing downtime during installation or maintenance.

Made from self-adhesive vinyl with a permanent adhesive, they grip firmly to cables, panels, switchgear, and other smooth surfaces. The bold black colour creates a strong contrast, which ensures visibility in both bright and low-light environments.

Available sizes:

• 10mm diameter

• 15mm diameter

• 20mm diameter

Common uses include:

• Marking phases in distribution boards and control systems

• Colour-coding for regulatory compliance

• Identifying phases in plant rooms and switchgear

• Long-term labelling in industrial or commercial sites

We offer fast delivery and bulk discounts, so you can maintain a consistent supply of phase marking labels without delays.