300A 12V-48V High Current Battery Isolating Switch

📝 300A Red On/Off Battery Switch

The 300A Red On/Off Battery Switch is a high-quality, reliable solution for safely managing power in campervans, RVs, motorhomes, caravans, 4WDs, and off-grid systems. Designed to provide a secure way to disconnect your battery bank, it protects your electrical components, prevents accidental drain, and improves long-term system reliability. Compact, durable, and easy to use, it’s an essential addition for both DIY builders and professional installers.

⭐ Essential Benefits

• 300A continuous rating – Handles the demands of modern campervan and off-grid electrical systems.
• 900A peak rating – Supports high-startup loads from inverters and heavy appliances.
• Easy rotary ON/OFF control – Quick and intuitive battery isolation.
• Durable construction – Built from robust, corrosion-resistant materials.
• Flexible installation – Suitable for surface or panel mounting in tight or open spaces.
• Improved safety – Helps prevent electrical fires and accidental battery drain.

⚙️ Functionality

Installed inline on the positive battery cable, the switch provides reliable mechanical isolation when performing maintenance, storing your vehicle, or safeguarding circuits. Its clear red rotary actuator offers a firm, positive ON/OFF action, giving you complete control over your electrical system.

🔌 Compatibility

• Works with 12V, 24V, 36V, and 48V systems
• Suitable for AGM, lithium, wet, gel, and calcium batteries
• Ideal for campervans, caravans, RVs, 4WDs, boats, and off-grid setups
• Supports inverters, DC-DC chargers, fuse panels, compressors, and high-load accessories

🧰 Installation Difficulty

🟡 3/5 (Moderate)
Requires correct cable sizing, crimped lugs, and secure mounting.

🔍 Features

• Red rotary ON/OFF actuator
• High-current internal switching
• Heavy-duty M10 terminal posts
• IP66 weather-resistant housing
• Compact construction for versatile mounting
• Suitable for harsh environments in mobile and marine builds

📊 Specifications

📦 What’s Included

• 1 × 300A Red On/Off Battery Switch

🙌 Why Choose This Product?

The 300A Red On/Off Battery Switch offers dependable isolation, rugged construction, and the current capacity required for modern electrical systems. Whether you're building a van conversion, upgrading a caravan, or wiring an off-grid system, this switch ensures long-term safety and performance for your setup.

🚀 Our Promise

Order today for same-day dispatch and enjoy a safer, more reliable electrical system on your next adventure.