Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
Single Core Solar Cable
Standard: EN 50618 / IEC 62930 / TUV 2PfG 1169
Designation: H1Z2Z2-K
Rated Voltage: 1.8 kV DC / 0.9 kV AC (up to 1500 V DC system)
Conductor: Class 5 fine stranded tinned copper (IEC 60228)
Insulation: XLPO (irradiation cross-linked)
Outer Jacket: XLPO (irradiation cross-linked)
Operating Temperature: −40 °C to +120 °C
Product Overview
Single Core Solar Cable (H1Z2Z2-K) is a photovoltaic DC wiring cable engineered specifically for solar power generation systems. Manufactured to EN 50618 / IEC 62930 and certified under TUV 2PfG 1169/08.2007, it is rated for 1.8 kV DC / 0.9 kV AC and designed for continuous operation from −40 °C to +120 °C. The double-layer XLPO construction — irradiation cross-linked polyolefin for both insulation and jacket — delivers outstanding resistance to UV radiation, ozone, moisture, and mechanical stress, meeting the 25-year outdoor service life demanded by utility-scale PV projects worldwide.
Available in conductor sizes from 1.5 mm² to 120 mm², H1Z2Z2-K covers the full spectrum of PV system capacities, from residential rooftop micro-installations to large ground-mounted solar farms running 1500 V DC string voltage. Standard colours are black and red for positive/negative polarity marking. Supplied on 500 m or 1000 m drums; custom cut lengths available on request.
XLPO Outer Jacket — Black irradiation cross-linked polyolefin, UV/ozone resistant
XLPO Insulation — Cross-linked polyolefin inner layer, dual dielectric protection
Tinned Copper Conductor — Class 5 fine-stranded, IEC 60228, tin-coated for corrosion resistance and reliable MC4 termination
1.8 kV DC / 1500 V System
Rated 1.8 kV DC accommodates modern high-voltage 1500 V DC PV systems, reducing string current and cable cross-section requirements versus older 1000 V systems.
−40 °C to +120 °C
XLPO compound remains flexible in arctic cold and withstands the extreme heat build-up inside rooftop conduits on summer days without deformation or cracking.
Double XLPO Insulation
Separate inner insulation and outer jacket — both irradiation cross-linked — provide dual dielectric protection and meet EN 50618 voltage and ageing requirements.
UV & Ozone Resistant
XLPO jacket passes EN 50618 accelerated UV ageing and ozone resistance tests — no cracking or embrittlement after equivalent decades of outdoor exposure.
Halogen-Free Low Smoke
XLPO compound emits no toxic halogen gases in fire. Essential for Building-Integrated PV (BIPV) and installations routed through occupied structures.
TUV Rheinland Certified
Third-party certification to TUV 2PfG 1169 — the mandatory quality mark required by major solar EPC contractors and project financiers globally.
Technical Specifications
Basic Parameters
| Designation | H1Z2Z2-K (EN 50618 / IEC 62930) |
|---|---|
| Rated Voltage | 1.8 kV DC / 0.9 kV AC (system voltage up to 1500 V DC) |
| Conductor | Class 5 fine stranded tinned copper (IEC 60228) |
| Insulation | XLPO — irradiation cross-linked polyolefin |
| Outer Jacket | XLPO — irradiation cross-linked polyolefin |
| Colour | Black (standard); Red available |
| Operating Temperature | −40 °C to +120 °C (continuous) |
| Min. Bending Radius | 4 × OD (fixed installation); 8 × OD (repeated flexing) |
| Flame Retardancy | IEC 60332-1 (single wire vertical burn) |
| UV Resistance | Excellent — passes EN 50618 accelerated ageing |
| Standards | EN 50618, IEC 62930, TUV 2PfG 1169/08.2007 |
| Certification | TUV Rheinland, CE, RoHS |
| Packaging | 500 m / 1000 m drum; custom cut lengths on request |
Dimensional & Electrical Data by Cross-Section
| Cross-Section (mm²) | No. of Strands | Conductor Ø (mm) | Insulation (mm) | Jacket (mm) | Overall Ø (mm) | Weight (kg/km) | DC Resistance (Ω/km, 20°C) | Current Rating (A, 40°C air) |
|---|---|---|---|---|---|---|---|---|
| 1.5 | 30 | 1.55 | 0.7 | 0.8 | 5.5 | 37 | 12.10 | 24 |
| 2.5 | 50 | 2.00 | 0.7 | 0.8 | 6.3 | 52 | 7.41 | 33 |
| 4 | 56 | 2.55 | 0.7 | 0.8 | 7.0 | 72 | 4.61 | 45 |
| 6 | 84 | 3.10 | 0.7 | 0.8 | 7.9 | 97 | 3.08 | 57 |
| 10 | 80 | 4.05 | 0.9 | 1.0 | 10.0 | 153 | 1.83 | 78 |
| 16 | 126 | 5.15 | 1.0 | 1.1 | 11.9 | 224 | 1.15 | 103 |
| 25 | 196 | 6.40 | 1.1 | 1.2 | 14.0 | 340 | 0.727 | 134 |
| 35 | 276 | 7.55 | 1.1 | 1.2 | 15.5 | 452 | 0.524 | 163 |
| 50 | 396 | 9.05 | 1.2 | 1.4 | 18.1 | 637 | 0.387 | 198 |
| 70 | 360 | 10.70 | 1.3 | 1.5 | 21.0 | 876 | 0.268 | 246 |
| 95 | 475 | 12.45 | 1.4 | 1.6 | 24.0 | 1172 | 0.193 | 298 |
| 120 | 608 | 14.00 | 1.5 | 1.7 | 26.8 | 1470 | 0.153 | 346 |
Why Tinned Copper Conductor?
Solar cables face decades of outdoor environmental stress — UV, humidity, temperature cycling, and chemical exposure. The conductor choice is critical to long-term PV system performance. H1Z2Z2-K uses Class 5 fine-stranded tinned copper, the universally recognised standard for photovoltaic wiring.
Tinned Copper — Easy to solder, better conductivity, anti-oxidation, anti-corrosion, sturdy and durable ✅
Pure Copper — Oxidises over time, susceptible to corrosion in humid/coastal environments ⚠️
CCA (Copper Clad Aluminium) — Higher resistance, poor solderability, galvanic corrosion risk at terminations ❌
Corrosion Resistance
Tin coating acts as a barrier against oxidation, moisture ingress, and sulfur attack — critical for coastal, humid, and industrial PV sites where bare copper degrades rapidly.
Reliable MC4 Termination
Tinned strands bond flawlessly with MC4 connector crimps and lug terminations, ensuring low-resistance, maintenance-free joints for the 25+ year system life.
High Flexibility
Class 5 fine stranding enables excellent flexibility for routing around roof structures, racking frames, and junction boxes without conductor fatigue or strand breakage.
Stable Low Resistance
Full copper conductivity is maintained while the tin layer prevents surface oxidation that would otherwise increase contact resistance and reduce power output over time.
25+ Year Service Life
EN 50618 mandates a minimum 25-year outdoor service life. Tinned copper consistently exceeds this in desert, tropical, and marine environments — validated by TUV testing.
Certifications & Standards
Typical Applications
Residential Rooftop PV
String wiring from panels to combiner box. UV/ozone resistance for open-air rooftop runs.
Commercial & Industrial Solar
Large rooftop arrays and carport installations. 1500 V DC compatible for modern inverter systems.
Utility-Scale Solar Farms
Ground-mounted MW-class plants. Long string runs demanding low DC resistance and high current capacity.
Building-Integrated PV (BIPV)
Halogen-free, low smoke — safe for cables routed through occupied buildings and facades.
Battery Storage Systems
DC connection between PV array and BESS. Wide temperature range suits indoor and outdoor battery enclosures.
Marine & Off-Grid Solar
Tinned copper and XLPO jacket resist salt spray and humidity in marine and remote off-grid installations.
Agrivoltaic Systems
Dual land use — solar above, crops below. Robust outdoor durability for elevated open-field arrays.
EV Charging Solar Carports
Combines PV generation with EV charging. Handles high-current wiring in vehicle-exposed outdoor environments.
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Frequently Asked Questions
As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.
Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.
Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.
For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.
Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.