LAPP ÖLFLEX SOLAR XLWP 1x4 mm² WH/BK-RD (100 m coil, article 1023621)
4 mm2 single-core PV cable to EN 50618, black sheath with a red stripe, per 100 m coil.
- Identical construction and rating to article 1023601; the stripe is the only difference
- H1Z2Z2-K to EN 50618, 1.5/1.5 kV DC, -40 to +90 C ambient, 25 year service life
- 4 mm2 tinned copper, 5.8 mm outer diameter
- Order both colours to mark polarity across a whole array
- Manufacturer
- LAPP
- Model code
- OELFLEX SOLAR XLWP 1x4 WH/BK-RD
- Item no.
- DLK-LAPP-1023621
- Delivery
- Delivery to Germany · EUR 14.90 at checkout
Plan with OELFLEX SOLAR XLWP 1x4 WH/BK-RD
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
- GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
- Datasheets on file for every item
- Within 24 h engineering response
- MOQ 1 unit · EU delivery
- Engineering-checked configurations
Numbers that survive the bank's site audit.
Every figure below comes from the manufacturer datasheet on file — the same document your lender's technical advisor will request.
Article number
Conductor cross-section
Outer diameter
Specifications
Every value exactly as published in the official OELFLEX SOLAR XLWP 1x4 WH/BK-RD documentation.
Pick the rating
LAPP OELFLEX SOLAR XLWP family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Pricing 1
One 100 m coil, which is LAPP's own standard packaging. 500 m and 1000 m drums are available — ask and we will price them.
The copper surcharge is confirmed at order. LAPP prices this cable against a copper basis of EUR 150 per 100 kg and adds a surcharge that moves with the metal. The figure on this page is a snapshot on the date shown in the price note, not a fixed quote.
Configuration 1
The sheath stripe, and nothing else. 1023601 is plain black, 1023621 is black with a red stripe, 1023625 is black with a blue stripe. Same 4 mm² conductor, same 5.8 mm outer diameter, same 38.4 kg/km copper, same approvals.
Installers use the stripe to tell plus from minus on site. If that does not matter to you, take whichever is cheaper.
Installation 1
Not directly buried. It may go underground in a cable trench per IEC 60364-5-52 / VDE 0100-520.
It tolerates submersion to 1 m in uncontaminated water between 5 and 40 °C, provided no tensile or shearing force acts on it. That is the XLWP part of the name — the cross-linked design keeps its volume resistivity after long periods in water.
Product information 2
Both, though 4 mm² is the usual residential string size — larger commercial strings normally take 6 mm². Used in both residential and commercial work. It is filed under one segment because the shop keeps one category per accessory; the part itself is not segment-specific.
Because we do not have one of this part, and we will not show you a different manufacturer's part in its place. Everything on this page is read from the manufacturer's own datasheet, which is linked above.
Ask us and we will send the manufacturer's product images with the quote.
Send the project. Hear from an engineer within 24 hours.
Loads, tariff, site constraints - our engineers reply with a compatibility check and a sizing recommendation.
Contact project supportOr write to linker01@de-linker.com — attach your load profile if you have one.