When setting up a solar power system, choosing the right DC cables is just as crucial as selecting high-quality solar panels. Two of the most common photovoltaic (PV) cable types are PV1-F and H1Z2Z2-K, but many installers struggle to understand their differences.

In this guide, we’ll compare PV1-F vs. H1Z2Z2-K cables in terms of:
✔ Construction & materials
✔ Voltage ratings & temperature resistance
✔ Installation flexibility & durability
✔ Best use cases for solar systems

By the end, you’ll know exactly which DC cable type is best for your solar project.

1. What Are PV1-F and H1Z2Z2-K Cables?

PV1-F Cables

• Single-core, flexible copper cable

• TUV-certified for photovoltaic applications

• Insulation: Cross-linked polyethylene (XLPE)

• Sheath: Halogen-free, flame-retardant material

• Common sizes: 4mm², 6mm² (popular for residential solar)

H1Z2Z2-K Cables

• Also single-core, flexible copper cable

• Meets EN 50618 standard (European PV cable standard)

• Insulation & sheath: Halogen-free, flame-retardant polyolefin

• More rigid than PV1-F but highly durable

• Common sizes: 2.5mm² to 10mm²

Key Similarity: Both are UV-resistant, weatherproof, and designed for outdoor solar use.

2. Key Differences: PV1-F vs. H1Z2Z2-K

A. Flexibility & Installation

• PV1-F is more flexible, making it easier to route through tight spaces (e.g., rooftop solar).

• H1Z2Z2-K is stiffer, better for fixed installations like solar farms.

B. Temperature & Voltage Resistance

• H1Z2Z2-K handles higher temperatures (up to 120°C) and higher voltage (1.8kV DC).

• PV1-F is sufficient for most residential systems (up to 90°C, 1.5kV DC).

C. Durability & Lifespan

• H1Z2Z2-K is more abrasion-resistant, ideal for harsh environments.

• PV1-F is still durable but better suited for less extreme conditions.

3. Which One Should You Choose?

✔ Use PV1-F If:

• You need easy installation (flexible for tight spaces).

• Your system operates under standard temperatures (below 90°C).

• You’re working on a residential rooftop solar project.

✔ Use H1Z2Z2-K If:

• You need higher voltage (1.8kV) or temperature resistance (120°C).

• Your installation is in harsh environments (deserts, industrial areas).

• You’re setting up a large-scale solar farm with long cable runs.

4. Common Mistakes When Choosing Solar DC Cables

Using regular electrical cables instead of PV-rated cables (not UV-resistant).
Ignoring bend radius (can damage H1Z2Z2-K if bent too sharply).
Choosing undersized cables (causes power loss & overheating).

Pro Tip: Always check TUV or EN 50618 certification before buying.

5. Where to Buy PV1-F & H1Z2Z2-K Cables?

• PV1-F: Widely available on Amazon, Alibaba, solar specialty stores.

• H1Z2Z2-K: Often sourced from European suppliers or certified solar wholesalers.

Top Brands:

• Lapp Kabel (H1Z2Z2-K)

• Huber+Suhner (PV1-F)

• Phoenix Contact (Both types)

Which Cable Wins?

For most home solar systems, PV1-F is the best choice due to its flexibility and cost-effectiveness. However, for industrial or high-temperature environments, H1Z2Z2-K is the superior option.