Heavy Duty 300A Pass Through Terminal Block – Wall Mounted High Current For Lithium Batteries
These versatile, heavy-duty waterproof terminals are specifically designed for safely passing power through sealed battery enclosures. Built with durability and reliability in mind, they are the ideal choice for modern lithium battery installations across a wide range of applications.
- Waterproof & Durable – IP67-rated design ensures reliable performance in harsh environments.
- Sealed Power Transfer – Perfect for routing power through sealed battery boxes without compromising protection.
- Lithium Battery Ready – Suited for high-performance lithium battery systems.
- Versatile Installation – Ideal for use in: Caravans, 4×4 vehicles, Camper trailers, Motorhomes
| from 5 pcs. | from 10 pcs. | from 20 pcs. |
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Lowest price in the last 30 days: $42.00
Description
Product Overview
Discover the Heavy‑Duty 300 A Pass‑Through Terminal Block, a high-performance, waterproof solution built for demanding lithium battery systems. Engineered with all-copper construction and rugged IP67 sealing, this terminal is your go-to for reliable, high-current power delivery in sealed battery environments. Designed to meet Australia’s latest lithium battery regulations for use within habitable areas, this terminal pack ensures safe and secure connections. It allows you to easily connect your battery lugs to your system, keeping all connections external to the sealed battery unit for added safety and compliance.
Why Choose This Terminal Block:
- Heavy‑Duty Power Handling – Rated for 300 A continuous current and up to 600 V AC, this terminal block excels in intense electrical demands.
- Premium All‑Copper Construction – Ensures maximum conductivity and corrosion resistance for efficient power transfer.
- Compact and Robust Design – M10 studs paired with durable copper material make it perfect for wall-mount installations in tight battery boxes.
- Water‑Resistant for Off‑Road Conditions – The IP67 waterproof rating means it stands up to dust, water spray, and harsh environments.
- Built for Automotive & Portable Energy Systems – Ideal for sealed battery enclosures in caravans, 4x4s, camper trailers, motorhomes, and other mobile applications.
- Wide Temperature Operation – Ready for use in challenging conditions, from -40 °C to +105 °C.
Typical Applications:
- Power pass-through for sealed lithium battery boxes (e.g. under bonnet or wall-mounted compartments)
- 12 V power distribution in off-road and mobile setups
- Robust mounting solutions for battery management systems or dual battery setups

Specification
| Application | Automotive |
|---|---|
| Material | Copper |
| Description | All copper terminal blocks |
| Max Voltage | 48V DC |
| Terminal Studs | M10 |
| Color | Red / Black |
| Rated Current | 300A |
| Waterproof Grade | IP67 |
| Rated Voltage | 600VAC |
| Terminal Material | Copper |
| Dielectric Strength | 3000VAC/min |
| Working Temperature | -40 ~ 105℃ |
Additional information
| Weight | 1 kg |
|---|---|
| Dimensions | 7 × 4 × 4 cm |







