PV-Ultra® Core Double Insulated Multicore DC Cable

PV-Ultra® Core Double Insulated Multicore DC Cable

PV-Ultra® Double Insulated Multicore DC Cable is purpose-designed for solar PV DC installations, delivering a safe, compliant, and long-life solution for DC interconnections between solar panels, DC isolators, and inverters. Engineered specifically for the DC side of photovoltaic systems, this specialist PV cable replaces older multicore armoured DC cable methods that are no longer recommended under current installation guidance.

Built with double insulated DC conductors, a high-strength construction, and a UV-stable outer sheath, PV-Ultra® DC cable is suitable for both internal and external routing. It supports modern Class II equipment requirements and is designed to provide dependable performance across long-term solar installations, with an expected service life of around 25 years.

This makes PV-Ultra® multicore DC cable an ideal choice for professional solar installers and contractors working on residential and commercial PV systems.

Key Features of PV-Ultra® Multicore DC Cable

• Designed specifically for solar PV DC systems
• Double insulated conductors suitable for Class II equipment
• Rated up to 1.5kV DC (conductor to conductor and conductor to earth)
• Recommended replacement for multicore armoured DC cables
• Suitable for indoor and outdoor installation
• UV-stable and mechanically robust outer sheath
• Red and white core colours for BS 7671 compliant DC identification
• Yellow DC warning print to indicate live circuits during daylight
• Long design life — approximately 25 years in service

Compliance & Safety

PV-Ultra® double insulated DC cable is designed to support safe and compliant PV DC interconnections and aligns with current wiring practice for solar installations.

• Designed for PV DC interconnection circuits
• Meets BS 7671 requirements for two-wire unearthed DC circuits
• Supports Class II or equivalent insulation up to inverter DC terminals
• Complies with BS 7671 Clause 712.412.101
• Avoids the use of multicore armoured DC cable, which is no longer recommended

Cable Construction

PV-Ultra® multicore DC cable uses specialist materials to improve electrical protection and installation durability.

• Conductors: Double insulated DC cores
• Core colours: Red and white for DC polarity identification
• Bedding: CarbonTek® layer for enhanced electrical protection
• Outer sheath: SolarTek® PVC UV-stable compound
• Markings: Yellow DC hazard warning print
• Visual design similar to mains cable to help reduce misidentification risk

Thermal Performance

Designed for demanding rooftop and exposed PV environments, PV-Ultra® DC cable supports elevated operating temperatures.

• Normal maximum conductor temperature: 90°C
• Short-term maximum conductor temperature: 120°C
• Maximum duration at 120°C: Up to 20,000 hours
• Maximum short-term ambient temperature: 90°C

Typical Applications

PV-Ultra® Core Double Insulated Multicore DC Cable is suitable for a wide range of solar PV DC wiring tasks, including:

• Solar panel to DC isolator cable runs
• DC isolator to inverter connections
• PV string and array multicore DC wiring
• Internal and surface DC routing
• Residential and commercial solar PV installations

Shop PV-Ultra® solar DC cable at alertelectrical.com for compliant, durable, and installer-approved photovoltaic wiring solutions.