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300A 4x M8 Post Heavy Duty Enclosed Busbar
300A 4x M8 Post Heavy Duty Enclosed Busbar
SKU:BB-HD-M8-RED
In stock
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300A 4x M8 Post Heavy Duty Enclosed Busbar
📝 Treklo 300A 4x M8 Post Heavy Duty Enclosed Busbar
The Treklo 300A 4x M8 Post Heavy Duty Enclosed Busbar is the ultimate choice for high-performance 12v and 24v electrical systems. Designed for off-grid, marine, and caravan applications, this enclosed busbar offers both durability and safety in one clean, professional-grade package. With four robust M8 posts and a tinned copper base plate, it ensures superior conductivity, corrosion resistance, and long-term reliability — all in a compact, easy-to-install design.
⭐ ESSENTIAL BENEFITS
• High-current 300A rating – dependable power handling for demanding 12v and 24v systems
• Protective enclosed housing – shields terminals from dust, debris, and accidental shorts
• 4-post flexibility – supports multiple heavy-duty circuit connections
• Premium materials – 304 stainless-steel M8 posts with tinned copper base for superior conductivity
• Includes 4 mounting screws – for quick and secure installation
⚙️ HOW IT WORKS / FUNCTIONALITY
The Treklo 4 Post M8 Enclosed Busbar provides a protected power hub for managing high-current distribution. Each M8 stainless-steel post supports heavy cabling and ensures excellent electrical contact. The fully enclosed case keeps terminals safe from accidental contact and corrosion, maintaining a professional finish that lasts.
🔁 COMPARISON CONTEXT
Compared to open-style busbars, this enclosed Treklo model provides enhanced safety, longevity, and resistance to harsh conditions — perfect for marine, off-grid, or mobile installations where reliability and protection are critical.
🔌 COMPATIBILITY
• Compatible with 12v / 24v DC systems
• Ideal for solar setups, battery banks, caravans, RVs, and marine applications
• Works with M8 ring terminals and high-current wiring
🧰 INSTALLATION DIFFICULTY
🟢 Easy (2/5) – simple surface-mount installation using the 4 included M5 mounting screws.
💬 WHY TREKLO BUSBARS ARE WORTH IT
Treklo busbars deliver premium performance without the premium price tag. Each unit features 304 stainless-steel hardware for corrosion resistance and a tinned copper base plate for superior electrical conductivity — the same high-quality materials used in top-end marine and automotive systems. By focusing on efficient manufacturing, not cutting corners, Treklo keeps prices low while maintaining professional-grade reliability, strength, and performance. So while they’re priced to save you money, they’re engineered to outlast and outperform cheap imitations.
📊 SPECIFICATIONS TABLE
| Specification | Value |
|---|---|
| Brand | Treklo |
| Rated Current | 300A @ 12v |
| Posts | 4x M8 stainless-steel |
| Screw Terminals | None (post-only design) |
| Mounting Screws | 4x M5 (included) |
| Base Plate | Tinned copper |
| Housing | Enclosed plastic protective case |
| Material | 304 stainless posts + reinforced enclosure |
| Voltage Compatibility | 12v / 24v |
| Mount Type | Surface mount |
📦 WHAT’S INCLUDED
• 1× Treklo 300A 4x M8 Post Heavy Duty Enclosed Busbar
• 4× M5 mounting screws
• Fully enclosed protective housing
🚀 OUR PROMISE
Order today for same-day dispatch and explore our full range of Treklo electrical and off-grid components.

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Tested for Reliability
All products are tested in real Aussie off-grid conditions before we stock them.
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Fast Dispatch
Order before 3 PM AEST for same-day shipping from Geelong, VIC.
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Quality Over Price
We only stock products we’d use ourselves—even if they cost a bit more.
Our Commitment
At Campervan Builders, our commitment is simple: we only supply quality campervan, caravan, motorhome, and RV parts that we’ve personally tested in real off-grid conditions. From interior LED lighting to Starlink 12V conversion kits, every product is chosen for reliability, durability, and ease of installation. We back this with fast shipping Australia-wide, friendly support, and honest advice to help DIY builders and professionals alike. When you shop with us, you’re choosing proven gear that keeps you connected and comfortable on every adventure.


















