100m Roll of 3B&S (26mm²) Black Single Core Automotive Cable
SKU: 21808418616

100m Roll of 3B&S (26mm²) Black Single Core Automotive Cable

Sale price$499.09 Regular price$554.54
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

100m Roll of 3B&S (26mm²) Black Single Core Automotive Cable100m Roll of KEY 3B&S (26mm) Black Single Core Automotive Cable Heavy Duty 3B&S Automotive Cable for Reliable High Current Power Distribution When dependable power transfer is critical, the 100m Roll of KEY 3B&S (26mm) Black Single Core Automotive Cable delivers the performance professional installers demand. Manufactured using Oxygen Free High Conductivity (OFHC) copper, this premium automotive cable provides exceptional conductivity, reduced voltage

100m Roll of KEY 3B&S (26mm²) Black Single Core Automotive Cable

Heavy-Duty 3B&S Automotive Cable for Reliable High-Current Power Distribution

When dependable power transfer is critical, the 100m Roll of KEY 3B&S (26mm²) Black Single Core Automotive Cable delivers the performance professional installers demand. Manufactured using Oxygen Free High Conductivity (OFHC) copper, this premium automotive cable provides exceptional conductivity, reduced voltage drop, and long-term durability in demanding automotive, marine, industrial, and off-grid environments. Designed to support high-current applications across 12V, 24V, and 48V electrical systems, it offers the ideal balance of flexibility, strength, and electrical efficiency.

About KEY Tubing & Electrical

KEY Tubing & Electrical (KTE) is an Australian-owned manufacturer with over 60 years of industry experience supplying electrical, cable, tubing, and custom-engineered solutions to industries across Australia and around the world. Based in South Australia, KEY is known for its commitment to quality manufacturing, rigorous quality standards, and reliable products designed for demanding automotive, electrical, industrial, and resource sector applications. KEY continues to support Australian industry with a strong focus on performance, durability, and dependable engineering.

Superior Conductivity with OFHC Copper Construction

Unlike conventional automotive cables, this 26mm² single core automotive cable utilises high-purity OFHC copper to maximise current flow and minimise resistance. The reduced impurity content helps lower heat generation under load, improving overall system efficiency and reducing energy losses. Whether powering a dual battery setup, feeding a DC-DC charger, or supplying current to a high-capacity inverter, this cable helps maintain stable voltage delivery throughout the system.

OFHC copper also offers enhanced resistance to hydrogen embrittlement and mechanical fatigue. This makes it particularly suitable for installations exposed to constant vibration, temperature fluctuations, and harsh environmental conditions commonly encountered in 4WDs, caravans, commercial vehicles, marine vessels, and industrial equipment.

Designed for High-Current 12V, 24V & 48V Systems

The substantial 26mm² conductor size, commonly referred to as 3B&S automotive cable, is ideal for applications requiring dependable high-current performance over longer cable runs. Rated for a maximum DC voltage of 120V, it is perfectly suited for modern vehicle electrical systems, lithium battery installations, inverter circuits, auxiliary battery banks, and renewable energy systems. The cable's low-resistance construction helps minimise voltage drop, making it an excellent choice for demanding power distribution applications.

Common Applications Include:

  • Dual battery systems in 4WDs, caravans and camper trailers
  • Battery interconnects and auxiliary battery wiring
  • DC-DC charger installations and lithium battery systems
  • High-current inverter and solar power systems
  • Marine electrical systems and battery banks
  • Commercial vehicle, fleet and industrial power distribution

Built to Australian Standards for Long-Term Reliability

Manufactured to comply with AS/NZS 1125 conductor requirements and AS/NZS 3808:2000 insulation standards, this cable delivers dependable performance in demanding environments. The durable V90 insulation provides excellent resistance to heat, abrasion, oils, fuels, and common automotive chemicals while maintaining flexibility for easier installation through chassis rails, conduits, and tight engine bay spaces.

The black outer sheath allows clear identification for negative earth and grounding circuits while maintaining a professional appearance in automotive, marine, and industrial installations. Supplied in a convenient 100-metre roll, it is an economical solution for workshops, auto electricians, fleet maintenance operators, and large-scale wiring projects.

Key Features & Specifications

  • Conductor Size: 26mm² (3B&S automotive cable)
  • Premium Oxygen Free High Conductivity (OFHC) copper
  • Suitable for 12V, 24V and 48V electrical systems
  • Maximum DC voltage rating: 120V
  • Flexible multi-strand construction for easier installation
  • V90 insulation rated for demanding operating conditions
  • Manufactured to AS/NZS 1125 and AS/NZS 3808:2000 standards
  • 100m roll ideal for workshops, commercial fleets and large projects

Ideal for Automotive, Marine & Off-Grid Power Systems

Whether you're wiring a 4WD dual battery system, upgrading a caravan lithium battery installation, building a marine battery bank, or completing an off-grid solar power project, the KEY 3B&S (26mm²) Black Single Core Automotive Cable provides the conductivity, durability, and reliability required for professional results. Suitable for caravan, RV, marine, off-grid, industrial, commercial vehicle, and renewable energy applications, this cable delivers dependable power where it matters most.

Upgrade your vehicle or power system today with the trusted performance of KEY 3B&S (26mm²) Automotive Cable and enjoy efficient, reliable power delivery for years to come.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21808418616

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Verified Purchase
Isabelle Craul
Lowell, US
★★★★★ 5
Lovely cabinet but needs time to put together!
Color: White, Size: 23x29
The overall cabinet is what I was looking for. Very sturdy and good looking. The main problem my husband had was with the directions to put it together. The pictures were hard to see and the majority of written directions were hard to understand. Definitely took longer to put together than should have taken. But when it was completed and hung, I have to say I love it. Be prepared to have patience and enough time set aside to put it together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
M
Verified Purchase
Mark
Grantham, US
★★★★★ 5
Solid cabinet; all aligns well
Color: White-1927, Size: 19x27
Amazon declined my first buy/ship if this cabinet as it was damaged when it reached Amazon. That was fine, but I still had to go thru ‘return’ process of Amazons, w/o a product to return; so I used their ‘chat feature’ to explain—went smoothly, and they secured the replacement for me; I just need to check latest bill to be sure I was only charged once. OK, now onto the cabinet: Solid materials (for MDF-which I generally avoid), and assembled + installed in just 1hr. Btw, I add ‘glue’ the the provided 8 wood dowels used for assembly. The doors hinge adjustments are easy to align doors for final finish. While this cabinet ‘hangs’ on its cleat, I did add one screw to the inside-bottom of cabinet to ensure no one inadvertently may ‘lift’ the cabinet off its cleat. This is rock solid secured to me wall above toilet for great extra storage in the kids’ bath! Overall, a good buy; but did expect it to be cheaper price considering MDF material and made in China. I look for country of origin now and try to buy from US friendly countries. Good luck, Mark in NY.
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Reviewed in the United States on April 1, 2024
R
Verified Purchase
R Kowicki
Houston, US
★★★★★ 5
Very impressive
Color: Navy Blue, Size: 23x29
I've had a lot of experience with modern furniture that you have to put together. Most of it, I worry about the durability of the product. Most is put together with repurposed particle board. So it's heavy and I would think not durable - especially in a damp environment. Saying that, I was very impressed with this product. My experience with the product to this point has been the best of those type of products. It shipped very well...everything in place and neatly packed. The engineered wood (resembles plastic) seems solid, water resistant at a minimum, and scratch resistant. The instructions provided - while the product was easy to assemble - were amongst the clearest I've seen from such a product. What impressed me the most was the thought behind the design of this product. The hinges are perfect for the product. The doors can be easily removed by pushing a button on the hinge. The holes on the boards were perfectly drilled - so much so that I didn't have to pound any board to put them together. The back wasn't nailed on and the slot used for the backing was spot on. If I had to choose negatives (and I'm really nit-picking because this is really designed that well) it was that the shelf ends up being a bit loose and I would have liked the mounting board to match the width of the slot it was being used to fill. Both can be fixed at the house by home products and screws. I was so impressed that I would go and buy another product from this manufacturer (and look for the manufacturer by name). IT is that good.
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Reviewed in the United States on December 4, 2022
D
Verified Purchase
David Steffen
Phoenix, US
★★★★★ 5
Great looking, nice quality
Color: Black, Size: 23x29
There is some assemble required. if your not ready to assemble this product may not be for you. the machining was spot on, all parts went together as they should.
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Reviewed in the United States on November 24, 2025
B
Verified Purchase
Beth Braun
Bozeman, US
★★★★★ 5
Stylish, sturdy cabinet
Color: White
This cabinet was even nicer than I thought it would be—stylish, sturdy, and easy to assemble. Perfect for holding medicines and small items in the bathroom, easy to see and find, out of reach of children.
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Reviewed in the United States on May 8, 2026

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