The ZBF 5,LGS:UNGERADE ZAHLEN is a 10-section, flat Zack marker strip used for terminal block identification. This white strip is pre-labeled horizontally with the consecutive odd numbers from 21 to 39. It is constructed from materials free of silicone and halogen and has a UL 94 flammability rating of V2. The marker strip operates reliably in an ambient temperature range of -40 °C to 100 °C. Its clear, pre-printed numbering and durable construction make it ideal for quick and reliable identification in control cabinets and electrical panels.