Spanish cable manufacturer Top Cable has introduced Powerflex Ultra, a cable designed for battery energy storage system (BESS) applications, at Intersolar Europe.

The company said the product was developed to address two key requirements in storage projects: installation flexibility and long-term durability. Top Cable noted that battery containers, power conversion stations, and electrical rooms typically contain high cable densities, making flexibility an important consideration during installation.

The cable combines a Class 6 conductor, a proprietary insulation manufacturing process, and a custom-developed sheath material to improve flexibility compared with conventional products. The company said the design can reduce bending radii, simplify equipment connections, and lower installation time and labor requirements.

Powerflex Ultra is designed to operate continuously at temperatures ranging from -40 C to 90 C. Top Cable said the cable has an expected service life of 30 years when operating at 90 C, compared with many conventional cables designed for continuous operation at temperatures of up to 70 C.

The company added that the cable can withstand short-circuit temperatures of up to 250 C, exceeding the capabilities of PVC-based cables, which typically have limits of around 160 C.

The product meets ultraviolet protection requirements under the EN 50618 standard and can be installed directly underground, in ducts, in pipes, or outdoors without additional protection, according to Top Cable.

The cable also carries an AD8 classification, indicating suitability for permanent submersion in water. The company said this expands deployment options in industrial facilities, energy infrastructure, and sites exposed to challenging weather conditions.

Powerflex Ultra is available for low-voltage applications with a rated voltage of 0.6/1 (1.2) kV AC and in versions rated at 1.8/3 kV AC. Top Cable said the latter configuration is suitable for 1,500 V DC applications.

The cable is manufactured entirely in Europe and carries certifications from AENOR, Bureau Veritas, and KEMA-KEUR, in addition to CE and UKCA markings for sale in European and UK markets.

From pv magazine España