The black key label with the inscription "Minus" in white is a high-quality product from Schneider Electric, specifically designed for 30 mm control units. It provides clear and concise labeling for switches and buttons that can be used in various applications. The elegant design with a black background and white text ensures good readability and harmoniously fits into different environments. This key label is ideal for use in industrial, commercial, or private sectors where precise control and labeling are required. The use of robust materials guarantees a long lifespan and reliability, while the simple installation allows for quick setup. - High-quality labeling for clear identification - Durable materials for longevity - Easy installation for quick setup.