⚡ Solar Electrical

Solar Cable

Solar (PV) cable is a single-core, double-insulated DC cable for connecting modules, strings and inverters. It uses cross-linked (XLPE/EPR) insulation that is UV-, ozone- and weather-resistant for outdoor rooftop use, rated for high DC voltage and a wide temperature range per IEC 62930 / EN 50618.

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⚠️ Note: PV cable carries live DC whenever modules are illuminated and cannot simply be switched off at the panel; treat conductors as energised and follow safe DC working practices.

Typical specification

Property	Typical value
Type	Single-core, tinned-copper, double-insulated PV DC cable (e.g. H1Z2Z2-K)
Rating	Common sizes 4 / 6 / 10 mm²; ampacity depends on size, grouping and ambient temperature
DC voltage	Typical rating up to 1.5 kV DC (1000 V/1500 V systems)
Protection	UV, ozone, weather and abrasion resistant; halogen-free, flame-retardant insulation
Standard	IEC 62930 / EN 50618; typical temperature range around −40 °C to +90 °C conductor

Indicative / typical values for planning — actual products vary by manufacturer and standard. Confirm the final spec sheet before ordering; we do not publish fixed prices, request a quote for current offers.

Applications

Module-to-module and string-to-combiner/inverter DC wiring on rooftop and ground-mount PV arrays.

What to specify when you request a quote

Conductor cross-section (mm²) based on current and voltage-drop calculation
System DC voltage class (1000 V vs 1500 V)
Length, colour coding and connector type (e.g. MC4-compatible)
Temperature/UV rating for the installation environment

Related in Solar Electrical

Solar Inverter Combiner Box Solar Breaker ← All solar electrical

FAQ

Why can't ordinary building wire be used for PV?

PV cable is double-insulated and specifically UV-, weather- and heat-resistant for permanent outdoor DC use; standard building cable degrades outdoors and may not be rated for the continuous DC voltage. Use IEC 62930/EN 50618 cable.

How is solar cable size chosen?

Size is selected from the string current, the system voltage and an acceptable voltage-drop (commonly kept low over the run), then derated for ambient temperature and how cables are grouped or routed.

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Send your sizes and quantities (or your floor plan) — our team specs and supplies against it.

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