Electron beam cross-linked solar cables with optimized performance in water - EN 50618 type

ÖLFLEX® SOLAR XLWP, electron beam cross-linked solar cable with optimized performance in water

  • Optimised cable design - high volume resistance even after long-term period in water
  • H1Z2Z2-K type certified according to EN 50618
  • Burial-related, mechanical UL 854 Impact-Resistance Test

Solar Energy Suitable for outdoor use Halogen-free Cold-resistant Acid-resistant Temperature-resistant UV-resistant Waterproof


Article number Conductor cross-section (mm²) Outer diameter [mm] Copper index (kg/km) Weight (kg/km) Base Unit Price (base price)
Core insulation: white / Outer sheath: black
4 5.8 38.4 68.1
6 6.4 57.6 91.6
10 7.6 96 138.6
16 9.1 153.6 209.7
Core insulation: white / Outer sheath: black with red stripe
4 5.8 38.4 68.1
1023622 6 6.4 57.6 91.6
10 7.6 96 138.6
16 9.1 153.6 209.7
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  • The alternative for water coverage, e.g. due to elevated water line caused by flooding
  • Reduction of flame propagation and of toxic combustion gases in the event of fire
  • Robust against mechanical impacts
  • Extruded colour stripe serves as reverse polarity protection during installation.
  • Exact quantity control during installation by meter marking on the cable sheath

Application range

  • Photovoltaic systems with DC system voltage up to 1800 V
  • For the cabling between the solar modules and as extension cable between the module strings and the DC/AC inverter
  • Flexible or building-integrated PV systems
  • Underground use without protection conduit/ duct in professionally built cable trench with at least 50 cm of back-fill soil (70 cm underneath roads), above indicating tape, above covering plastic slab, above at least 10 cm of covering sand layer, above the cable laid on at least 10 cm high sand bed layer
  • In September 2018 and based on AD8 watertightness, this product was recommended by Solartechnik Bayern for underground use typically realized via underground conduits/ ducts (...) for PV applications

Product features

  • Weather/ UV resistant per EN 50618, Annex E, as well as ozone resistant per EN 50396
  • Halogen-free and flame-retardant
  • Good notch and abrasion resistance
  • Burial-related, mechanical Impact-Resistance Test of Single-Conductor Type USE and USE-2 cables [Underground Service Entrance Cables] per UL 854, Section 23, conducted
  • XLWP = X-Linked + Water-Proof (Permanent water contact AD8 acc. to IEC 60364-5-51, 1 mtr. in max. submersion depth @ temperature of widely unmoved water between 5 °C and 40 °C),
    Proven electron beam cross-linked quality

Norm references / Approvals

  • H1Z2Z2-K type certified according to EN 50618
  • Items with other cross-sections on request

Product Make-up

  • Fine-wire, tinned-copper conductor
  • Core insulation made of electron beam cross-linked copolymer
  • Colour of core insulation: white
  • Outer sheath made of electron beam cross-linked copolymer
  • Outer sheath colour: Black only, or Black with Red or Blue stripe

Classification ETIM 5

  • ETIM 5.0 Class-ID: EC001578
  • ETIM 5.0 Class-Description: Flexible cable

Classification ETIM 6

  • ETIM 6.0 Class-ID: EC001578
  • ETIM 6.0 Class-Description: Flexible cable

Conductor stranding

  • Fine wire according to VDE 0295,
    class 5/IEC 60228 class 5

Minimum bending radius

  • D</=8mm: 4D;
    8<D</=12mm: 5D;
    D>12mm: 6D
  • *D = Cable's outer diameter

Nominal voltage

  • AC U0/U: 1.0/1.0 kV
    DC U0/U: 1.5/1.5 kV
    Max. permissible DC operating voltage: 1.8 kV

Test voltage

  • AC 6500 V

Current rating

  • Im compliance with EN 50618, Table A.3

Temperature range

  • -40°C to +120°C max. conductor temperature based on EN 60216-1
    Ambient temperature range according to EN 50618: -40°C to +90°C

  • Unless specified otherwise, the shown product values are nominal values. Detailed values (e.g. tolerances) are available upon request.
  • Copper price basis: EUR 150/100 kg. Refer to catalogue appendix T17 for the definition and calculation of copper-related surcharges.
  • Please find our standard lengths at: www.lappkabel.de/en/cable-standardlengths
  • Packaging size: Coil 100 m; Drum (500; 1000) m
  • Photographs and graphics are not to scale and do not represent detailed images of the respective products.
  • Prices are net prices without VAT and surcharges. Sale to business customers only.