Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
Pre-Assembled PV Cable
Cable Standard: EN 50618 / IEC 62930 / TUV 2PfG 1169
Cable Designation: H1Z2Z2-K with MC4 connectors (factory-crimped)
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)
Connector Type: MC4-compatible, IP67, 1500 V DC / 30 A (IEC 62852)
Core Colours: Red (positive) / Black (negative) — ordered separately
Product Overview
Pre-Assembled PV Cable is a factory-terminated photovoltaic wiring solution: a H1Z2Z2-K EN 50618 solar cable with MC4-compatible connectors crimped and assembled at both ends under controlled workshop conditions. Available as a single red core (positive string lead) or single black core (negative string lead), supplied in standard lengths from 0.5 m to 10 m, it is designed for immediate plug-and-play connection between PV modules, string combiners, and inverter inputs — with no field stripping, crimping, or connector assembly required.
The cable core is identical to our single core H1Z2Z2-K solar cable — Class 5 fine-stranded tinned copper conductor, irradiation cross-linked XLPO insulation, irradiation cross-linked XLPO outer jacket — rated at 1.8 kV DC / 0.9 kV AC and certified to TUV 2PfG 1169/08.2007. Factory crimping eliminates the variability of field termination, ensuring every joint meets the IEC 60512 / IEC 62852 contact resistance specification from day one.
MC4 Male / Female Connectors — Factory-crimped both ends, IP67 rated, tool-free plug-in connection
XLPO Outer Jacket — UV/ozone resistant irradiation cross-linked polyolefin
XLPO Insulation — Dual cross-linked dielectric layer
Class 5 Tinned Copper — Fine-stranded IEC 60228, corrosion-resistant
Plug-and-Play Installation
MC4 connectors are factory-fitted — installers simply click positive to positive and negative to negative. No crimping tools, no connector assembly, no wiring errors on site.
Factory-Controlled Crimping
Each connector is crimped under workshop conditions to IEC 62852 contact resistance specification. Eliminates the #1 cause of PV system hot spots — poorly crimped field terminations.
IP67 Weatherproof Connectors
Fully sealed MC4-compatible connectors are IP67 rated — dust-tight and protected against temporary immersion. Suitable for all outdoor installation environments.
Red & Black Colour Coded
Red for positive, black for negative — polarity is unambiguous at every connection point. Eliminates polarity reversal errors that can damage inverters and bypass diodes.
Standard & Custom Lengths
Stock lengths 0.5 m to 10 m cover module-to-module daisy chains, string extension leads, and inverter DC input connections. Custom lengths available on request.
Full EN 50618 Cable Core
The cable is not a lower-grade "extension lead" — it is the identical H1Z2Z2-K construction, TUV certified, rated 1.8 kV DC, −40 °C to +120 °C, with 25-year outdoor service life.
Technical Specifications
Cable Core Parameters
| Cable 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 |
| Core Colours | Red (positive lead) / Black (negative lead) — ordered separately |
| Operating Temperature | −40 °C to +120 °C (continuous) |
| UV & Ozone Resistance | Excellent — passes EN 50618 accelerated ageing |
| Flame Retardancy | IEC 60332-1 |
| Cable Standards | EN 50618, IEC 62930, TUV 2PfG 1169/08.2007 |
MC4 Connector Parameters
| Connector Type | MC4-compatible (male + female pair, one at each cable end) |
|---|---|
| Connector Rating | 1500 V DC / 30 A (IEC 62852 / UL 6703) |
| IP Rating | IP67 (dust-tight; protected against temporary immersion) |
| Crimping Standard | IEC 60512 / IEC 62852 contact resistance specification |
| Contact Material | Tinned copper alloy |
| Housing Material | UV-stabilised PPO (polyphenylene oxide) |
| Locking Mechanism | Snap-lock; requires MC4 disconnect tool for separation |
| Compatible With | Standard MC4 connectors from Stäubli, Amphenol, and equivalents |
Electrical Data by Conductor Cross-Section
| Cross-Section (mm²) | No. of Strands | Overall Ø (mm) | Weight (kg/m) | DC Resistance (Ω/km, 20°C) | Current Rating (A, 40°C air) | MC4 Max. Current (A) |
|---|---|---|---|---|---|---|
| 2.5 | 50 | 6.3 | 0.052 | 7.41 | 33 | 30 |
| 4 | 56 | 7.0 | 0.072 | 4.61 | 45 | 30 |
| 6 | 84 | 7.9 | 0.097 | 3.08 | 57 | 30 |
| 10 | 80 | 10.0 | 0.153 | 1.83 | 78 | 30 |
Standard Lengths & Configuration Options
Pre-assembled PV cables are available in the following standard lengths. Custom lengths are accepted for project orders — specify length (±50 mm tolerance), cross-section, and colour (red/black) when ordering.
Configuration Guide
| Module Extension Lead | Single red or black, 0.5–2 m — extends the module's factory pigtail to reach the next connector in a string daisy chain |
|---|---|
| String Interconnect | Single red or black, 1–5 m — connects adjacent module strings within a row, bridging the gap between panel frames |
| Inverter DC Input Lead | Red + black pair, 3–10 m — runs from the combiner box or last module to the inverter DC input terminals |
| Pair Order (Red + Black) | Order one red and one black of the same length to form a complete positive/negative DC circuit — supplied as individual pieces, not pre-joined |
| Custom Project Supply | Specify: length (m), cross-section (mm²), colour, quantity. MOQ 100 pcs per SKU for custom lengths |
Typical Applications
Module-to-Module Daisy Chain
Connect panels in series within a string. Plug-in MC4 eliminates field crimping on rooftops.
Residential Rooftop PV
Short extension leads fill the gap between module pigtails and racking-mounted combiner boxes.
String-to-Inverter Wiring
Final DC lead from last panel or combiner to the inverter DC input — pre-terminated for fast connection.
Commercial & Industrial Arrays
Standardised lead lengths speed up large-scale installations — pre-cut, pre-crimped, ready to plug.
Battery Storage DC Links
Short DC interconnects between PV array, charge controller, and battery bank in off-grid systems.
Maintenance & Replacement
Plug-in replacement for damaged string leads — no tools needed, minimal system downtime.
Portable & Off-Grid Solar
0.5–2 m leads suit compact portable panels, camping solar kits, and boat/RV rooftop installations.
Ground-Mounted Solar Farms
Pre-cut to row-pitch dimensions — eliminates on-site measuring and cutting on utility-scale projects.
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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.