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The Ralos DKHRC2C4-100 is a twin 4mm² solar cable rated to 1500V DC, built for long-term performance in rooftop and ground-mounted PV installations. It delivers consistent power transfer between panels, inverters, combiner boxes, and other DC system components across the full temperature range of Australian climates. The cable features tinned copper conductors and halogen-free XLPE insulation, engineered for UV resistance, weather protection, and excellent conductivity in high-voltage DC systems.
Modern PV arrays demand cable that handles extreme Australian conditions without degradation. Standard single-core cables don't offer the flexibility and compactness of twin-core construction, forcing installers to run separate runs and manage twice the termination points. This cable solves that problem with fine-stranded tinned copper that resists corrosion, halogen-free XLPE sheathing for fire safety, and full IEC 62930 and EN50618 compliance so it meets every modern PV system requirement without exception or workaround.
Solar installers value this cable for consistent performance on multi-year projects: the 25-year life expectancy mirrors most panel warranties, meaning cable and panels age together. The 100 metre roll covers typical roof runs on single to dual-array installations, with no need for mid-run splicing. Stock one part number and deploy it across all commercial and residential arrays in your region. Priced competitively against single-core pairs and delivered fast, the DKHRC2C4-100 is a no-brainer for PV contracts where the margin is thin but the job must be done right the first time.
The DKHRC2C4-100 is not rated for immersion in water or submersed installations. Do not use this cable in permanently wet conduit, underground trenches with standing water, or tidal or marine submerged applications: use marine-grade or submersible cable rated IP67 or higher for those environments. This cable is suitable for outdoor exposure and damp environments (rain, humidity, salt spray) but not for permanent water immersion.
Verified Sparky Direct customer reviews: Ralos DKHRC2C4-100 (Solar Cable Twin 4mm 1500V DC)
Priced competitively and a quick turnaround from placement of order to dispatch — Pakton
Great value — John
(DKHRC2C4-100)
It's designed to link solar panels and DC components in photovoltaic systems, providing consistent energy flow between panels, inverters, combiner boxes, and other array elements. It handles both string-level interconnects and array-to-inverter runs.
Yes. It's UV- and weather-resistant, ideal for exposed rooftop and ground-mounted installations. The halogen-free XLPE sheath resists cracking, degradation, and UV damage even under decades of full sun, salt spray, and temperature cycling.
It uses twin 4mm² tinned copper cores for low resistance and excellent performance. Conductor resistance is 5.09 Ω/km at 20°C, minimising voltage drop on runs between array and inverter.
Absolutely. It's tested and certified to IEC 62930 and EN50618 H1Z2Z2-K standards for high-voltage DC systems. No derating or voltage headroom adjustment is needed on any modern PV architecture.
The cable has a 25-year life expectancy, matching most panel warranties. It carries a standard 1-year domestic and commercial warranty from invoice date, returnable to Sparky Direct for assessment or replacement if faulty.
No. The 4mm² conductor works with standard MC4 and crimp-style solar connectors available from any electrical wholesaler. A standard cable crimper is all you need; check your inverter or combiner box connector type and source matching male or female MC4 ends accordingly.
The Ralos DKHRC2C4-100 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
| Specifications | Details |
|---|---|
| Voltage Rating | EN50618 & IEC62930 AC: 1.0/1.0kV; DC: Max.1.5kV |
| Ambient Temperature | -40°C up to 90°C |
| Conductor Resistance At 20℃ | ≤ 5.09 Ω/km |
| Cable Construction | |
| Conductor | Stranded tinned copper |
| Size | 4mm² |
| Stranding | 56/0.285±0.01mm |
| Diameter | 2.4mm |
| Primary Insulation | XLPE |
| Colour | Black、Red |
| Secondary Insulation | XLPE |
| Colour | Black（red bar） |
| Outer Diameter | 5.40×11.30mm² |
| Standards | o IEC62930, EN50618 H1Z2Z2-K |
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Ralos |
| SKU | DKHRC2C4-100 |
| Package Weight | 12.150kg |
| TYPE | VALUE |
|---|---|
| Type | Solar Cable |
| Brand | Ralos |
| Colour | Black |
| Voltage (V) | 1500 |
| Length (mtrs) | 100 |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
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