Xinhongye Cable
// AUTHORIZED DISTRIBUTOR IN THAILAND

The wire that
lasts 25 years.

Xinhongye — solar XLPE cross-linked polyethylene cables · UV-resistant · withstands -40°C to +90°C · PV cable 6mm² + Battery cable 25-50mm² 1500VDC · TÜV EN 50618 / UL 4703 certified

RATED: 1500VDC / 1000VAC TEMP: −40°C / +90°C WATER: AD8 submersible UV: 720h tested
View All Cables Request Quote
// PV CABLE · 6mm² · IEC 62930 / UL 4703
∅ 7.00mm ± 0.20
Outer XLPE · Red 0.80mm · UV / halogen-free Inner XLPE · Black 1.05mm · cross-linked PE Tinned Copper 78 × 0.30mm strands · 6mm² ∅ outer = 7.00mm ± 0.20
Outer XLPE · Red
0.80mm · UV-resistant · halogen-free · LSZH
Inner XLPE · Black
1.05mm · cross-linked PE · 1500VDC rated
Tinned Copper
78 × 0.30mm strands · R ≤ 3.39 Ω/km
AD8 Water Immersion
PASS · Permanent water immersion · IEC 60364 AD8
1500 VDC
Voltage Rating
−40° / +90° C
Temperature Range
25 yrs
Service Life
TÜV /UL
EN 50618 / 4703
// THE INSULATION MATTERS

Why XLPE beats PVC

PV cables come in two flavors on the market — cheap PVC or XLPE that lasts 25 years. Xinhongye uses EU export-grade XLPE cross-linked insulation.

// PVC · CHEAP

PVC Insulation

Standard PVC cable — indoor use, not for solar

  • UV-resistant only 2–5 years (cracks and crumbles)
  • Operating temp limited to −15°C to +70°C
  • Releases toxic fumes when burned (contains Cl, F)
  • Does not meet TÜV EN 50618 standard
// NOT RECOMMENDED FOR OUTDOOR SOLAR
⚡ // XLPE · XINHONGYE

XLPE Cross-Linked PE

XLPE — cross-linked plastic structure lasts 5× longer

  • UV-resistant 720h · 25+ years per standard
  • Operating −40°C to +90°C (short-term +120°C)
  • Halogen-free · LSZH · flame-retardant VW-1
  • AD8 water immersion PASS · continuous submersion OK
  • Certified TÜV EN 50618 · UL 4703 · IEC 62930
⚡ // WORLD-CLASS SOLAR PV STANDARD

// SERVICE LIFE COMPARISON (UNDER THAI SUNLIGHT)

PVC Cable
5–10 yrs
XLPE Xinhongye
25+ yrs
// CABLE LINEUP

Pick the right cable

Two main families — PV cable (red/black · H1Z2Z2-K) connects solar panels + Battery cable (orange · ESP15Z3Z3-K) connects batteries.

// PV · RED (+) Xinhongye PV Cable Red 6mm²

PV Cable · Red

H1Z2Z2-K · 6mm² · 1500VDC

DC positive (+) · tinned copper · AD8 water-resistant · -40/+90°C

View PV Red
// PV · BLACK (−) Xinhongye PV Cable Black 6mm²

PV Cable · Black

H1Z2Z2-K · 6mm² · 1500VDC

DC negative (−) · tinned copper · AD8 water-resistant · -40/+90°C

View PV Black
// ESS · 25 / 35mm² Xinhongye Battery Cable 25-35mm² Orange ESS

Battery Cable 25 / 35 mm²

ESP15Z3Z3-K · 1500VDC

Battery 5–10kWh · bare copper · -40°C/+125°C · 2 PfG 2693

View ESBA25 / ESBA35
// ESS · 50mm² Xinhongye Battery Cable 50mm² Orange ESS

Battery Cable 50 mm²

ESP15Z3Z3-K · 1500VDC

Battery 10–15kWh · bare copper · -40°C/+125°C · 2 PfG 2693

View ESBA50
// AMPACITY SIZING

Pick the right size

Cable sizing table by load current — undersized cables overheat, damaging insulation and wasting system energy.

// 125°C ESS CABLE · AMPACITY CURVE
Current (A) vs Ambient Temperature (°C)
0 100 200 300 400 500 Current Peak (A) 40 50 60 70 80 90 100 110 Ambient Temperature (°C) // QES STOCK · 25/35/50mm² // CABLE SIZE 120 mm² 95 mm² 70 mm² 50 mm² ★ 35 mm² ★ 25 mm² ★ 16 mm² 10 mm² 6 mm² 4 mm² ★ QES STOCK ESP15Z3Z3-K Source: Xinhongye 125°C ESS Cable datasheet
Real curve from the Xinhongye 125°C ESS Cable datasheet — shows the peak current each cable size can safely carry, decreasing as ambient temperature rises (e.g., hotter rooms near the inverter or with fast battery cycling). 40°C is the standard design ambient for a well-ventilated battery room. Pick a size whose curve stays above your system's peak current.
// H1Z2Z2-K · PV CABLE
90°C XLPE · 1500VDC · tinned copper
Cable Size
Max Current*
OD
Typical Use
6 mm²
≤ 70 A
∅ 7.0 mm
Standard PV string · residential to commercial (recommended)
// ESP15Z3Z3-K · BATTERY / ESS CABLE
125°C XLPO · 1500VDC · bare copper · 2 PfG 2693
Cable Size
I @ 40°C amb
R @ 20°C
Typical Use
25 mm²
≈ 178 A
0.78 mΩ/m
Battery 48V residential · 5–8 kWh systems
35 mm²
≈ 222 A
0.554 mΩ/m
Battery · 8–12 kWh systems (recommended)
50 mm²
≈ 278 A
0.386 mΩ/m
Battery · 12–20 kWh systems / commercial
*PV cable: ampacity per IEC 62930 · ESS battery cable: values from the Xinhongye 125°C ESS Cable ampacity curve at 40°C ambient (derates as ambient rises). Apply a 20–30% reduction for conduit/grouped runs. Allow 20–30% headroom for peak inrush. Contact QES Energy for site-specific sizing.
// CERTIFIED BY AUTHORITIES

Certified to global standards

Xinhongye solar PV cables pass EU and US standards testing.

TÜV EN 50618
Solar PV Cable
UL 4703
PV Wire Standard
IEC 62930
PV DC Cable
CE · RoHS
EU Conformity
// ALL PRODUCTS

All Xinhongye Cables

100% genuine · TÜV EN 50618 / UL 4703 / IEC 62930 / CE

0 items
// FAQ

Frequently Asked Questions

QES Energy is the authorized distributor of Xinhongye in Thailand. We stock the full range — PV cable H1Z2Z2-K 6mm² (red/black) certified to IEC 62930 / UL 4703 and Battery cable ESP15Z3Z3-K 25/35/50mm² (orange) certified to 2 PfG 2693, 100% genuine. Contact us on Line @qesenergy.

No, you can't. THW/VCT cables use PVC insulation designed for indoor use and only last 2–5 years under UV. Thai sunlight will crack, brittle, and leak through them within a few years. PV cable requires XLPE cross-linked insulation (Xinhongye uses 2 layers — inner black + outer red) — UV-resistant 720h, heat-resistant to 90°C (conductor max 120°C), halogen-free — and must be certified to TÜV EN 50618 / IEC 62930 / UL 4703 PV WIRE.

PV Cable (H1Z2Z2-K): 2-layer XLPE (inner black + outer red/black) · tinned copper 78 strands × 0.30mm · -40°C to +90°C · UV-resistant · IEC 62930 / UL 4703 · 6mm² only. Battery Cable (ESP15Z3Z3-K): XLPO insulation + jacket · bare copper stranded · -40°C to +125°C (much higher heat tolerance — batteries run hot) · 2 PfG 2693 (TÜV ESS standard).

Based on the Xinhongye 125°C ESS Cable ampacity curve at 40°C ambient (typical Thai indoor conditions): 25mm² ≈ 178A · resistance 0.78 mΩ/m (battery 48V, small homes 5–8 kWh). 35mm² ≈ 222A · 0.554 mΩ/m (battery 8–12 kWh · recommended). 50mm² ≈ 278A · 0.386 mΩ/m (battery 12–20 kWh / commercial). Size up by 20–30% above peak inrush.

PV cable (tinned copper): copper coated with tin — because it lives outdoors, exposed to humidity / UV / rain. Tin prevents corrosion and makes soldering MC4 connectors easier. Battery cable (bare copper): pure copper — because it lives inside a sealed battery cabinet in controlled conditions, and you need lower resistance for high currents (tinned has slightly higher resistance). Two cable types, two purposes.

AD8 is the highest water-resistance rating under IEC 60364 — meaning "permanent water immersion". Xinhongye H1Z2Z2-K passes AD8, so our PV cables can run through flooded areas, on rooftops with pooled water, or buried in damp ground without degrading. Ideal for Thailand's heavy rainfall and seasonal flooding.

A cable that lasts as long as your solar system

Free consultation with QES Energy engineers — choose the right PV and battery cable sizes for your system.

Request Free Quote 083-987-2899
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