hb-digital Solar Cable H1Z2Z2-K 1×4mm² – TÜV-Certified PV Cable up to 1.5kV DC
General Information: The hb-digital Solar Cable H1Z2Z2-K 1×4mm² is a single-core photovoltaic cable with a cross-section of 4mm² for the DC wiring of solar systems. The cable is TÜV Rheinland certified according to EN 50618:2014.
Function: The cable carries direct current through a tinned copper conductor at a rated voltage of up to 1.5kV DC. The cross-linked insulation and sheath protect the cable permanently against weather and environmental influences.
Applications: The cable is intended for the wiring of solar modules and photovoltaic systems.
Material: The conductor is made of tinned copper, the insulation and sheath of XLPO. The material is halogen-free and low-smoke as well as resistant to UV, ozone, oil and chemicals.
Technical Details: The outer diameter is 5.6mm, the maximum conductor resistance is 5.09Ω/km (20°C). The cable is designed for ambient temperatures of -40...+90°C; the maximum conductor temperature is 120°C, and up to 250°C for 5s in case of a short circuit. It was tested with AC 6.5kV (50Hz, 5min).
Conclusion: A TÜV-certified, weather-resistant 4mm² solar cable for reliable DC wiring up to 1.5kV.
Technical Specifications
| Product | hb-digital Solar Cable H1Z2Z2-K |
| Type designation | H1Z2Z2-K |
| Cross-section | 1×4mm² |
| Conductor material | Tinned copper |
| Insulation / sheath | XLPO, halogen-free, low smoke |
| Conductor diameter | 2.46mm |
| Insulation thickness | 0.7mm |
| Sheath thickness | 0.8mm |
| Outer diameter | 5.6mm (±0.2mm) |
| Rated voltage | 1.5kV DC (Uo/U 1/1kV AC) |
| Test voltage | AC 6.5kV, 50Hz, 5min |
| Ambient temperature | -40...+90°C |
| Max. conductor temperature | 120°C |
| Short-circuit temperature | 250°C (5s) |
| Min. bending radius | 6×D |
| Max. conductor resistance (20°C) | 5.09Ω/km |
| UV resistance | EN 50289-4-17 |
| Ozone resistance | EN 60811-403 / EN 50396-8.1.3 |
| Acid and alkali resistance | EN 60811-404 |
| Low-temperature behaviour (-40°C, 16h) | EN 60811-504 / EN 60811-506 |
| Flame retardance | IEC 60332-1-2 |
| Certification | EN 50618:2014 – TÜV Rheinland LGA Products GmbH, certificate no. R 50629964 0001, valid from 6 June 2024 |
Scope of Delivery
| 100m Solar Cable H1Z2Z2-K 1×4mm² red |
FAQ
Can I install the solar cable outdoors?
- Yes, the cable is resistant to UV and ozone (EN 50289-4-17) and designed for ambient temperatures of -40...+90°C – making it suitable for typical outdoor installation on solar modules.
Which system voltage is the cable suitable for?
- The rated voltage is 1.5kV DC (Uo/U 1/1kV AC; 1.5kV DC according to the certificate). The cable was tested with AC 6.5kV (50Hz, 5min).
What bending radius do I need to observe during installation?
- The minimum bending radius is 6 times the cable diameter (6×D). With an outer diameter of 5.6mm, this corresponds to approximately 34mm.
| Product type: | Solar cable |
| Cross section: | 4mm2 |
HB-DIGITAL GmbH, Wahlerstraße 16, 40472 Düsseldorf, Deutschland, info@hb-digital.de, https://www.hb-digital.de

