This black and red hybrid solar PV cable set provides a matched pair of positive and negative DC string cables with XLPO (cross-linked polyolefin) outer sheaths — delivering clear polarity identification that reduces installation errors in solar string wiring and simplifies maintenance inspections over the 25-year system life. Supplied as matched black (negative, ‑) and red (positive, +) single core cables to IEC and EN 50618 standards.
The XLPO outer sheath compound provides demonstrably superior UV resistance compared to standard PVC — XLPO sheaths maintain mechanical integrity and flexibility after >20,000 hours of UV exposure testing, while standard PVC begins embrittlement within 5–8 years of outdoor exposure. The tinned Class 5 copper conductor ensures long-term reliable contact at MC4-compatible crimp interfaces, preventing the contact resistance increase that causes hot-spot losses in aging solar strings.
| Parameter | Value |
|---|---|
| Colours | Black (‑) and Red (+) |
| Conductor | Class 5 tinned annealed copper |
| Insulation & Sheath | XLPO |
| Rated Voltage DC | 1500V DC |
| Conductor Temp. | 90°C continuous / 120°C peak |
| Ambient Temp. | ‑40°C to +90°C |
| Standard | EN 50618 / H1Z2Z2-K, IEC 62930 |
IEC 60445 and most national solar installation standards require DC polarity marking — using colour-coded black/red cables satisfies this requirement without the need for additional polarity labelling tape. On large ground-mount installations with thousands of string connections, colour-coded cables significantly reduce the risk of reverse polarity connection errors that can damage string inverters and combiner boxes.
