Unipolar wire with grade 5 tinplated copper flexible conductor. PFirst insulation HEPR type G7 special. Second insulation Elastomer compound Halogen Free Type M2. Specific for Photovoltaic systems with nominal voltage U o/U600/100V in alternating current and not over 1500V in direct current, flame retardant, halogen free, designed to last at least 25 years.Technical specifications:- Continuous operating temperature: -40°/+90°C;- Maximum operating temperature: +120°C;- Minimum operating temperature: -40°C;- Peak Temperature: 250°C;- Wire life at 60°C: 25 years;- Test voltage: 5Kv;- Minimum bending range: 6 times the external diameter;- Break load: 50 N/mmq;- Colour: black;- Diameter: 4 mmq;- Coil lenght: 100 mt.Reference regulations: CEI EN 50363 - CEI EN 60228 - IMQ-CPT-065.