We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Pair of red and black 12AWG solar cables with MC4 connectors, 20 feet each

BFKK

BFKK 20 Feet 12AWG Solar Extension Cable Kit

SKU CH-S5TF-8AS7K

A 20-foot 12AWG solar extension cable pair with IP68 waterproof connectors for photovoltaic systems, rated 57A at 6500V test voltage

Cable Length 20 Feet

  • Reduces power loss with 12AWG tin-plated copper for efficient charging
  • Certified TÜV and CE rated 57A at 6500V test voltage
  • IP68 waterproof connectors lock securely for reliable outdoor connections
  • PPO flame-retardant jacket withstands -40°C to 90°C extremes
  • Designed for 30-year outdoor life with UV and corrosion resistance

Solar Extension Kit

The BFKK 20-foot 12AWG kit includes one black and one red cable, each terminated with locking male and female waterproof connectors. It is designed for photovoltaic installations that need a reliable link between panels and charge controllers.

Build Quality & Connections

Conductors use tin-plated copper for improved conductivity and corrosion resistance, wrapped in PPO flame-retardant insulation rated for -40 °C to 90 °C. The IP68 connectors lock securely and allow multiple cables to be chained for longer runs, while the sheath resists UV, moisture and direct burial.

Thermals, Noise & Power

With a conductor resistance of 5.09 Ω/km and a 57 A current rating, the cables minimise voltage drop during charging. No moving parts mean silent operation, and the 6500 V test voltage confirms insulation integrity under normal outdoor loads.

Highlights

  • Reduces power loss with 12AWG tin-plated copper for efficient charging
  • Certified TÜV and CE rated 57A at 6500V test voltage
  • IP68 waterproof connectors lock securely for reliable outdoor connections
  • PPO flame-retardant jacket withstands -40°C to 90°C extremes
  • Designed for 30-year outdoor life with UV and corrosion resistance

Specifications

No published specifications for this item yet.

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What cross-sectional area does the 12AWG cable provide, and what current does that support?

The cable has a 4mm² cross-section and a rated current of 57A.

What are the connector genders and how do they lock together?

Each cable ends in a male and a female connector that lock with a self-locking mechanism.

How do you connect the kit between the panel and the controller, and what mistake should you avoid?

Plug the male end into the panel and the female end into the charge controller, ensuring each self-lock clicks fully; the common error is leaving a connector partially seated, which breaks the waterproof seal.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.