Professional cable manufacturer
EN 50618:2014 · IEC 62930 · TÜV 2PfG 1169
H1Z2Z2-K 4mm² Solar Cable
Single-core flexible PV cable with a tinned-copper Class 5 conductor and electron-beam cross-linked XLPO insulation — for module, string, combiner box and inverter wiring on rooftops, solar farms and off-grid systems.
1.5/1.5 kV
Rated DC Voltage
Class 5
Tinned Copper
−40 … +90°C
Ambient Range
1.5–35mm²
Cross Sections
↓ Download Datasheet (PDF)
EN 50618 / IEC 62930
25-year design life
Sample orders available
OEM colours & packing
1500V DC SOLAR CABLE
EN 50618:2014PV cable standard
IEC 629301.5 kV DC PV cables
TÜV 2PfG 1169PV1-F requirements
EN / IEC 60228Class 5 conductor
−40°C … +90°CAmbient range
Key Specifications
The essentials, at a glance
Everything a solar engineer checks first — before diving into the full datasheet below.
1500V DC
Rated voltage (1.8 kV max.)
1.0/1.0 kV
Rated AC voltage
Class 5
Flexible tinned Cu
XLPO
E-beam insulation
LSZH
Halogen-free sheath
Black / Red
+ custom colours
Product Overview
Built for the DC side of a solar array
The H1Z2Z2-K 4mm² is a single-core flexible photovoltaic cable specified to EN 50618:2014 and IEC 62930, with construction aligned to the TÜV 2PfG 1169 (PV1-F) requirements. It is the cable that runs between modules, along the string, into the DC combiner box and on to the inverter.
The conductor is Class 5 flexible stranded tinned copper per EN/IEC 60228. Tinning keeps the strand surface stable in humid, coastal and polluted conditions, while the fine stranding makes the cable easy to route around module frames and into junction boxes. The 4mm² size carries 52 A on a surface and 55 A in free air at 60°C ambient, per EN 50618 Table A3, and its maximum DC resistance is 5.09 Ω/km at 20°C.
Insulation and sheath are both electron-beam cross-linked XLPO, halogen-free and low smoke. The cross-linked structure is what allows a 90°C continuous conductor temperature (120°C for up to 20 000 h), resists UV, ozone and hydrolysis, and supports the 25-year minimum design life that EN 50618 requires.
Rated 1.5/1.5 kV DC with a maximum permissible operating voltage of 1.8/1.8 kV, the cable is intended for 1500V DC string architectures — the standard for modern utility-scale and large commercial plants where higher string voltage reduces cable runs and losses.
More about the manufacturer: About SORIVO →
Key Features
Eight features that matter on a PV site
EN 50618 / IEC 62930
Specified to the European photovoltaic cable standard and its IEC equivalent, with construction aligned to TÜV 2PfG 1169 (PV1-F).
Tinned Copper Conductor
Class 5 flexible stranded tinned copper per EN/IEC 60228 — flexible routing plus a corrosion-resistant strand surface for long outdoor service.
Electron-Beam XLPO
Insulation and sheath are cross-linked by electron beam, giving a thermally and mechanically stable compound rather than a thermoplastic jacket.
1500V DC Rated
1.5/1.5 kV DC with 1.8/1.8 kV maximum permissible operating voltage — matched to modern 1500V DC string architectures.
Halogen-Free & Low Smoke
EN/IEC 60754-1 and 60754-2 for halogen acid gas, EN/IEC 61034-1/-2 for smoke density with light transmittance above 70% — relevant for rooftops and enclosed spaces.
90°C Continuous / 120°C Peak
90°C continuous conductor temperature for the full design life, 120°C for up to 20 000 h, and 250°C for a maximum of 5 s under short circuit.
UV, Ozone & Weather
Weathering resistance per EN 50618 Annex E, ozone resistance per EN 50396, and AD7 immersion water resistance — built for permanent outdoor exposure.
1.5 – 35 mm² Range
The same H1Z2Z2-K construction is available from 1.5 mm² to 35 mm², so a project can standardise on one cable family from string to inverter.
Applications
Where this cable goes on a PV project
From a rooftop string to a utility-scale array — one construction, sized per project.
01
Utility-Scale Solar Farms
String and array DC cabling between module rows, combiner boxes and central inverters.
02
Commercial & Industrial Roofs
Module-to-module and string runs on large rooftops, where tight bends and long service life both matter.
03
Residential Rooftop PV
Panel-to-inverter DC wiring in home systems, including hybrid and retrofit installations.
04
DC Combiner Boxes
String inputs and DC distribution inside combiner boxes, where bend radius and sheath toughness matter.
05
Inverter DC Inputs
DC input side of string and central inverters, sized for continuous current and voltage drop.
06
BIPV & Façades
Building-integrated PV, where halogen-free, low-smoke performance is part of the specification.
07
Floating & Agri-PV
Floating plants and agricultural or fishery PV, where UV, hydrolysis and humidity resistance are decisive.
08
Off-Grid & Hybrid
Remote power, solar-plus-storage and hybrid systems where the DC cabling must last without maintenance.
Technical Specifications
Full specification sheet
The complete parameter set — the same data our engineers quote from.
Table 1 Dimensions, resistance and current rating by cross-section
| Cross-section mm² | Conductor dia. max. mm | Overall diameter min. – max. mm | Min. bending radius fixed, mm | Weight approx. kg/km | Max. DC resistance at 20°C, Ω/km | Current in free air at 60°C, A | Current on a surface at 60°C, A |
|---|---|---|---|---|---|---|---|
| 1.5 | 1.6 | 4.4 – 5.0 | 15 | 35 | 13.7 | 30 | 29 |
| 2.5 | 1.9 | 4.8 – 5.4 | 17 | 46 | 8.21 | 41 | 39 |
| 4 | 2.4 | 5.3 – 5.9 | 18 | 61 | 5.09 | 55 | 52 |
| 6 | 2.9 | 5.8 – 6.4 | 20 | 80 | 3.39 | 70 | 67 |
| 10 | 4.0 | 7.0 – 7.6 | 23 | 122 | 1.95 | 98 | 93 |
| 16 | 5.6 | 9.0 – 9.8 | 30 | 200 | 1.24 | 132 | 125 |
| 25 | 6.4 | 10.3 – 11.2 | 34 | 290 | 0.795 | 176 | 167 |
| 35 | 7.5 | 11.7 – 12.5 | 50 | 400 | 0.565 | 218 | 207 |
The 4 mm² row is highlighted — it is the size this page covers. Current ratings are single cable at 60°C ambient per EN 50618 Table A3; for higher ambient temperatures apply the EN 50618 Table A4 factors: 70°C × 0.92, 80°C × 0.84, 90°C × 0.75. For grouped or touching cables refer to the two-loaded-cables values and HD 60364-5-52. Dimensions are nominal and subject to manufacturing tolerance.
Table 2 Construction and performance parameters
| General Information | |
| Product Name | H1Z2Z2-K 4mm² Solar PV Cable (single core) |
| Primary Standard | EN 50618:2014 — cables for photovoltaic systems |
| Further Standards | IEC 62930; TÜV 2PfG 1169 (PV1-F); EN / IEC 60228 |
| Rated Voltage AC | U0/U 1.0/1.0 kV AC, maximum permissible operating voltage 1.2/1.2 kV |
| Rated Voltage DC | U0/U 1.5/1.5 kV DC, maximum permissible operating voltage 1.8/1.8 kV — intended for 1500V DC strings |
| Test Voltage | 6.5 kV AC or 15 kV DC (alternative tests), 5 minutes |
| Cable Structure | Single core, 1 × 4 mm²; the same construction is available from 1.5 mm² to 35 mm² |
| Core Identification | Black (standard) / Red — polarity marking of the PV string |
| Conductor | |
| Conductor Material | Electrolytic annealed tinned copper — corrosion resistant strand surface |
| Conductor Type | Class 5 flexible stranded conductor, per EN / IEC 60228 |
| Max. DC Resistance | 4 mm²: 5.09 Ω/km at 20°C (other sizes in Table 1) |
| Conductor Diameter | 4 mm²: 2.4 mm maximum |
| Insulation & Sheath | |
| Insulation Material | XLPO (cross-linked polyolefin), electron-beam cross-linked, halogen-free |
| Sheath / Jacket | XLPO (cross-linked polyolefin), LSZH, UV and ozone resistant |
| Insulation / Sheath Thickness | 4 mm²: 0.7 mm insulation, 0.8 mm sheath (nominal, per the applicable EN 50618 construction) |
| Halogen-Free | EN / IEC 60754-1; corrosive gases per EN / IEC 60754-2 |
| Smoke Density | EN / IEC 61034-1 and EN / IEC 61034-2 — light transmittance > 70% |
| Sheath Colours | Black (standard) / Red; other colours on request |
| Sheath Marking | SORIVO H1Z2Z2-K 1 × <size> mm² 1.0/1.0 kV AC 1.5 kV DC EN 50618 IEC 62930 <year> — or per customer requirement |
| Electrical Ratings | |
| Current Carrying Capacity | 4 mm²: 55 A in free air / 52 A on a surface at 60°C ambient; two cables touching on a surface: 44 A (EN 50618 Table A3) |
| Ambient Derating | Per EN 50618 Table A4: 70°C × 0.92, 80°C × 0.84, 90°C × 0.75 |
| Insulation Resistance | ≥ 800 MΩ·km at 20°C — SORIVO in-house routine test value |
| Voltage Drop (4 mm²) | ≈ 10.18 V/A/km for the complete circuit loop at 20°C conductor temperature |
| Temperature & Environmental | |
| Ambient Temperature | −40°C to +90°C, fixed installation; −25°C to +60°C during handling and installation |
| Max. Conductor Temperature | +90°C continuous (design life per EN 50618); +120°C for up to 20 000 h |
| Max. Short-Circuit Temperature | +250°C, maximum 5 seconds |
| Cold Performance | Cold bending, elongation and impact at −40°C per EN 60811-504 / -505 / -506 |
| UV Resistance | EN 50618 Annex E (720 h / 360 cycles, EN 50289-4-17 method A) |
| Ozone Resistance | Per EN 50396, test type B |
| Water Resistance | AD7 immersion per EN 50618; AD8 submersion class agreed per order and supported by the test record for the construction supplied |
| Flame Performance | EN / IEC 60332-1-2, single cable vertical flame propagation |
| Minimum Bending Radius | 3 × overall diameter for cables up to 12 mm OD; 4 × overall diameter above 12 mm OD, per EN 50565-1 (per-size values in Table 1) |
| Design Life | Minimum 25 years per EN 50618; typically 30 years at 90°C conductor temperature on the Arrhenius basis |
| Reaction to Fire (CPR) | Classified under EN 50575 — the declared class for the selected construction is stated on the Declaration of Performance |
| Packaging & Logistics | |
| Packaging | Wooden drum / coil / reel / custom packaging per request |
| Standard Length | 100 m / 200 m / 500 m per roll, customizable |
| MOQ | 3,000 meters; sample orders negotiable |
| Lead Time | 7–15 working days; stocked sizes may be available in 3–5 days |
Final cable selection should be based on string current, system voltage, run length, short-circuit conditions, installation method and applicable local requirements. Our engineers confirm the exact construction and certification scope with your project data.
Certificates & Standards
Verify before you buy — we make it easy
EN 50618:2014 / IEC 62930
The European standard for cables in photovoltaic systems and its IEC equivalent — the design basis of this cable. Certificate of conformity available on request.
Request certificate copy →TÜV 2PfG 1169 (PV1-F)
The TÜV specification for photovoltaic cables, referenced alongside EN 50618 — with conductor and test data verified for every production batch.
Request test report →Halogen-Free, Smoke & Flame
EN/IEC 60754-1 and 60754-2, EN/IEC 61034-1/-2 and EN/IEC 60332-1-2 — the fire performance set required for rooftops and enclosed installations.
Request test report →
Transparency note: certification status and exact scope should always be confirmed against the certificate for the selected cable construction. We provide the certificate and test reports with every quotation — no blank promises.
Quality & Factory
Made in a real cable factory, tested before it ships
Every drum of solar cable is produced under controlled processes and released against the applicable EN 50618 requirements.
- 1Incoming material control — tinned copper wire and XLPO compounds are checked before production starts.
- 2In-line process monitoring — conductor diameter, insulation eccentricity and sheath thickness are tracked during extrusion.
- 3Routine electrical tests — on-line spark test plus finished-cable voltage and insulation-resistance tests per the applicable requirements.
- 4Batch documentation — conductor resistance, dimensions and test records are retained for every production batch.
19+
countries served
60+
solar & storage projects
100%
routine test before shipment
How to Order
From inquiry to loaded drum in 5 steps
Send Inquiry
Tell us cross-section, colour, quantity and destination market.
Confirm Construction
We confirm construction, certification scope and quotation within one working day.
Sample Evaluation
Sample for qualification — stocked sizes within a few working days.
Bulk Production
7–15 working days lead time with batch test documentation.
Delivery & Support
Wooden drum packing, shipping documents and after-sales support.
FAQ
Questions buyers ask before ordering
H1Z2Z2-K is the cable designation used in EN 50618, the European standard for cables in photovoltaic systems. PV1-F is the earlier designation associated with the TÜV 2PfG 1169 requirements. Both describe a single-core, flexible, halogen-free DC photovoltaic cable, but the two are rated differently and must not be treated as interchangeable when a string is sized: PV1-F to TÜV 2PfG 1169 is rated 0.6/1.0 kV AC and 0.9/1.8 kV DC with a +200°C short-circuit limit, while EN 50618 rates H1Z2Z2-K 1.0/1.0 kV AC and 1.5/1.5 kV DC with +250°C. SORIVO supplies the H1Z2Z2-K construction referenced to EN 50618 and IEC 62930. For new projects the EN 50618 designation is the one normally written into the specification.
Yes. The cable is rated U0/U 1.5/1.5 kV DC, with a maximum permissible operating voltage of 1.8/1.8 kV DC, which is the rating EN 50618 and IEC 62930 specify for 1500V DC photovoltaic strings. The AC rating is 1.0/1.0 kV with 1.2/1.2 kV maximum. Final selection — including any derating for ambient temperature — remains the responsibility of the system designer.
It depends on string current, run length and how the cable is installed. Using the EN 50618 Table A3 values at 60°C ambient: 4 mm² carries 55 A in free air and 52 A on a surface, while 6 mm² carries 70 A and 67 A. For long string runs the deciding factor is usually voltage drop rather than ampacity — 4 mm² has a maximum DC resistance of 5.09 Ω/km and 6 mm² of 3.39 Ω/km. Send us the string current and one-way run length and we will confirm the size.
+90°C continuously, which is the temperature on which the EN 50618 design life is based. Up to +120°C is permitted for a total of 20 000 hours of operation, and +250°C is permitted for a maximum of 5 seconds under short-circuit conditions. The ambient range for fixed installation is −40°C to +90°C; during handling and installation the cable should be kept between −25°C and +60°C.
Outdoors, yes — the XLPO insulation and sheath are UV, ozone and weather resistant per EN 50618, and the standard construction carries an AD7 immersion water rating. For direct burial the higher AD8 water-immersion class is required — AD8 comes from the installation / IP side rather than from EN 50618, so it is agreed per order and supported by the test record for the construction supplied. Direct burial should also be checked against the installation method and any additional mechanical protection required by the local regulations.
H1Z2Z2-K is a photovoltaic cable specified to EN 50618 and is intended for the DC side of a PV array. For battery racks, battery containers and PCS connections the dedicated product is our 1500V ESS Energy Storage Cable, which is designed around the TÜV 2 PfG 2693 requirements for cables connected to battery energy storage systems, with a +125°C conductor rating. If your project combines PV and storage, we can quote both constructions together and confirm which cable belongs on each DC segment.
Yes. Certificate and test documentation is provided with the quotation and with the shipment, and the exact scope is always confirmed against the certificate for the selected construction before the order is placed. We would rather show you the document than describe it — request it through the form below and we will send the scans.
Yes. SORIVO can arrange sample orders for qualification and project evaluation. Sample availability and lead time depend on the required cross-section, colour and current stock. Standard stocked sizes may be available within a few working days, while customized constructions may require additional production time.
Need a sample for your solar project?
Tell us the cross-section and quantity — we reply within one working day.
Get a Free Quote
Send your solar cable requirement
The more detail you give, the faster and more accurate our quotation. Our engineers reply within one working day.
- Cross-section (e.g. 4mm² or 6mm²) and quantity (meters)
- Jacket colour: black or red
- System type: 1500V DC string / rooftop / off-grid hybrid
- Destination market (for certification scope)
- Sample request, if needed
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