Danger - Main Switch Labels - Safety Signs by Caledonia Signs

Clearly identify the primary electrical isolation point for a circuit, building, or piece of equipment. These labels alert personnel that the switch controls the main power supply and must be handled with caution due to the potential for high voltage and serious electrical hazards. The label ensures clear recognition of critical switchgear, supporting safe and informed operation.

The primary reason for using these labels is electrical safety and emergency response. In the event of a fault, fire, or maintenance task, the main switch must be quickly and accurately located to isolate power. Clearly labeling it helps prevent delays, confusion, or accidental activation of other, non-critical switches. It also helps reinforce the importance of following proper lockout/tagout procedures.

These labels are commonly placed on or near main circuit breakers, main isolators, switchboards, distribution panels, and consumer units in industrial, commercial, and residential settings. They are especially important in large facilities with multiple panels and switches, where visual clarity can significantly improve safety and efficiency.

Using “Danger – Main Switch” labels ensures that the most critical part of an electrical system is easily identifiable, supporting routine maintenance, safe shutdowns, and emergency isolation. It promotes compliance with electrical safety standards and helps protect both personnel and equipment from harm.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Roll / Sheet of Labels: Manufactured from self-adhesive vinyl, our roll / sheets of labels are easy to apply and are budget-friendly. The adhesive backing on each label allows for easy application to a variety of surfaces making them ideal for high-volume tasks such as product packaging, shipping, inventory tagging, or compliance labelling.