Twisted Alu Cable Bt 4X25mm2 4X16mm2​ The Twisted Alu Cable Bt series—available in 4×16mm² and 4×25mm² configurations—delivers robust three-phase power distribution with enhanced flexibility. Constructed with 1350-H19 aluminum conductors (61% IACS conductivity), each cable features four individually insulated conductors twisted in a SZ stranding pattern (16× lay length) for reduced crosstalk and improved handling.​ Current capacities scale with size: 4×16mm² (75A) and 4×25mm² (105A) at 90°C, supported by 1.2mm XLPE insulation (20kV/mm dielectric strength). The twisted design reduces electromagnetic interference by 30% compared to parallel conductors, while a flame-retardant (UL 94 V-0) PVC outer sheath resists UV, chemicals, and abrasion.​ Operating in -40°C to 90°C environments, these 2.9-3.8kg/m cables meet IEC 60502-1 and UL 44 standards. Offering 40% cost savings over copper, they excel in machinery interconnections, building distribution, and renewable energy systems. Their 8× OD bend radius and twisted flexibility facilitate installation in tight spaces, making them ideal for dynamic applications requiring reliable 600V three-phase performance.