Tyree Cables

Tyree Tinned Marine Cable for Demanding DC Installations

Tyree cables (formerly Tycab) are a common choice for low-voltage wiring where moisture, vibration and long service life matter. This collection focuses on Tyree tinned copper marine cable in heavy twin core and single core sizes. Each size is sold per metre for custom runs or in 30m rolls for larger builds and workshop stock.

Tinned copper strands are coated to resist corrosion, which helps protect conductor quality in salty, humid or dusty conditions. That makes this cable well suited to boats, caravans, RVs, 4WDs, trucks and off-grid systems, where untinned copper can oxidise and lose performance over time. For a wider selection of sizes and colours, browse our full marine cables range.

What's in the Tyree Range

• 8B&S (7.7mm²) twin core marine cable: available per metre or as a 30m roll, for moderate-current paired positive and negative runs.
• 6B&S (13.5mm²) twin core marine cable: available per metre or as a 30m roll, for higher-current or longer twin core runs where voltage drop is a concern.
• 2B&S (32mm²) single core marine cable in red: available per metre or as a 30m roll, for heavy positive feeds.
• 2B&S (32mm²) single core marine cable in black: available per metre or as a 30m roll, for matching negative returns.

Twin Core Applications

Twin core cable keeps the positive and negative conductors together in a single sheath. This simplifies routing through chassis rails, hulls and cabinetry. Typical uses include:

Feeding an auxiliary battery from a DC-DC charger, running power to a trailer or caravan, connecting solar regulator outputs, and supplying fridges, pumps or lighting circuits.

Single Core Applications

Red and black 2B&S single core cable suits heavy-current connections such as battery-to-inverter links, battery bank interconnects, main feeds to busbars and isolator switches. Colour-coded insulation makes polarity easy to identify during installation and later fault finding.

Selection Tips for Tyree Cables

Size for Current and Run Length

Choose cable size by the total current and the round-trip length of the circuit, not current alone. Longer runs need a larger conductor to keep voltage drop acceptable. That matters most for charging circuits and inverters. Our DC cable sizing and system wiring calculator can help you confirm the correct B&S size before you order.

Per Metre or 30m Roll

Buy per metre for a single upgrade or a known run length. A 30m roll is more practical for full boat or caravan rewires, multiple installs, or fleet and workshop use.

Terminate Correctly

Heavy cable performs only as well as its terminations. Pair 2B&S, 6B&S and 8B&S cable with correctly sized lugs and use adhesive-lined heat shrink for a sealed, low-resistance connection. Correct crimping tools also matter.

Order Your Tyree Marine Cable

Specify tinned Tyree cable for corrosion-resistant wiring that suits marine, mobile and off-grid environments. Select your size and core configuration, then choose cut-to-length metres or a 30m roll to suit your project.