MARATHON/KULKA marking strips are designed to enhance terminal block functionality by providing insulation and a marking surface for identification. These strips can be pre-mounted to simplify assembly and inventory management. Available in materials such as XP (general purpose laminate), GME (glass cloth melamine), and GEE (glass cloth epoxy), they cater to a range of industrial applications requiring clear terminal identification and reliable insulation. Consult Customer Service for availability with specific series numbers.