Thomas & Betts RB1253 is a polypropylene insulated twin ferrule, crucial for establishing secure and dependable electrical connections when terminating conductors within screw clamp terminal blocks. Constructed from tin-plated copper, these ferrules offer excellent conductivity and corrosion resistance. The polypropylene insulation enhances insulation and provides added protection. They conform to DIN 46228, Part 4 standards and are ideal for applications requiring robust and reliable termination, commonly found in industrial control panels, machinery, and electrical distribution systems. The ferrule's dimensions are optimized for a secure fit and efficient electrical transfer.