---
product_id: 520996839
title: "Bus Bar 12V-48V DC 300A 4X 5/16\"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack"
brand: "gloaso"
price: "€ 59.74"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/520996839-bus-bar-12v-48v-dc-300a-4x-5-16-m8
store_origin: IE
region: Ireland
---

# 300A continuous current capacity Corrosion-resistant stainless steel hardware 4x 5/16" (M8) heavy-duty terminal studs Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack

**Brand:** gloaso
**Price:** € 59.74
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your power game with rugged, reliable bus bars built to last!

## Quick Answers

- **What is this?** Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack by gloaso
- **How much does it cost?** € 59.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/520996839-bus-bar-12v-48v-dc-300a-4x-5-16-m8)

## Best For

- gloaso enthusiasts

## Why This Product

- Trusted gloaso brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up to 48V DC:** Supports high-voltage setups for versatile applications
- • **Marine-Grade Durability:** Glass fiber reinforced nylon & stainless steel resist saltwater corrosion
- • **Tool-Free Wiring Access:** Removable side windows for quick, hassle-free installation
- • **Universal Compatibility:** Perfect for cars, RVs, boats, solar, and off-grid battery banks
- • **Complete Installation Kit:** Includes screws, covers, and dual bus bars for positive & ground

## Overview

This heavy-duty bus bar set features 300A continuous current capacity at up to 48V DC, with four robust 5/16" (M8) brass terminal studs per bar. Constructed with glass fiber reinforced nylon and stainless steel hardware, it offers superior corrosion resistance ideal for marine and off-grid applications. Designed for easy installation with removable side windows and a complete mounting kit, it’s perfect for automotive, RV, marine, solar, and battery bank power distribution.

## Description

Full description not available

## Features

- ✅ ​​Premium Construction: Heavy-Duty Module Design Busbar Box. Glass fiber reinforced Nylon base & cover with Brass plates. Stainless steel screws/nuts resist saltwater corrosion, sepcial for marine
- ✅ ​​Secure Multi-wire Distribution Block: 300A PowerBar with four 5/16"( M8) terminal studs– ideal for parallel/series setups in max 48v DC electric installations. Removable side windows allow quick access for wiring without tools
- ✅ ​​Max voltage: 48VDC.
- ✅ ​​Continuous Rating: 300 Amp at 12 Volt DC per connection
- ✅ ​​Common Bus Bar Distribution Box: it widely fit for automotive, car, stereo setup, RVs, truck, trailer, solar, battery bank, off-grid, boat, marine and max 48V DC electrical systems
- ✅ ​​Easy to Install : Surface Mount, 4 Mounting holes with screws included
- ✅ ​​Safe Note: a, the wire and over current protection is sized based on the load; b, Make sure your 5/16" Lug can work with 300Amps current
- ✅ ​​​What You Get: 1x 300A postive bus bar with 4x 5/16" studs terminal( red), 1x 300A negative bus bar with 4x 5/16" studs terminal( black), 2x covers, 16x screws

## Product Details

- **Current Rating:** 300 Amps
- **Connector Type:** Screw
- **Number Of Contacts:** 4
- **Mounting Type:** surface
- **Material:** Base& Cover Material: Nylon, Glass Fiber reinforced., Bus Material: Brass, Nickel plated, Stud Material: Stainless Steel
- **Color:** 300A- 4x5/16" (M8) - Black& Red 2pack
- **Brand:** Gloaso
- **Voltage:** 48 Volts (DC)
- **Number Of Poles:** 4
- **Product Dimensions:** 2.72"W x 1.75"H

## Images

![Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack - Image 1](https://m.media-amazon.com/images/I/61g8vmSrSzL.jpg)
![Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack - Image 2](https://m.media-amazon.com/images/I/61gY90BlQgL.jpg)
![Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack - Image 3](https://m.media-amazon.com/images/I/71q+ZwcAnoL.jpg)
![Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack - Image 4](https://m.media-amazon.com/images/I/71QpEWoJZvL.jpg)
![Bus Bar 12V-48V DC 300A 4X 5/16"(M8) Posts Terminal Power Distribution Block Heavy Duty Battery Busbars Positive& Ground for Car, RV, Marine, Solar LiFePO4/ Lithium Batteries Bank, 2 Pack - Image 5](https://m.media-amazon.com/images/I/61p36exVlnL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This Heavy Duty Bus Bar, Saves Time and Money.
*by G***S on March 17, 2025*

Designing a solar charging system with multiple batteries was a breeze with this 600 Amp bus bar. You don't want to risk the chance of using substandard materials and that is why, after much research, I purchased this product. One look and I could immediately tell it is made with the highest quality materials. The way it is designed lends itself to safety and a robust mounting ensures it will stay put. The covers are easily removable but also provide short protection when installed. It saved me time and money by reducing the lengths of wire I had to run when designing and building my solar charging project. Highly recommended.

### ⭐⭐⭐⭐⭐ Great performance
*by J***Z on August 27, 2024*

Excellent choice for anyone needing reliable and robust power distribution. High-quality copper. Excellent conductivity and durability. Installation is straightforward. Heavy-duty construction. This bus bar offers great performance and value for its price.

### ⭐⭐⭐⭐⭐ Zero complaints! Very nice bus bar!
*by A***T on December 22, 2023*

I was hoping to find a solution for a tight space in a solar generator I'm building. The bus bars I ordered originally are long and take up an awkward amount of space and I went on the hunt for a better solution. This bus bar isn't cheap, but it's perfect! It's not overpriced, compared to other specialty type electrical components. Still, at around $45, they're obviously proud of their product (and they should be). The plastic housing feels extremely durable, it's clearly fiberglass reinforced. I had to go back and re-read the ad, and yep, they call it 'fiber and reinforced nylon.' The gauge of the steel used for the plate and the 3/8" lugs, I have no doubt that it can handle 400 amps. The max I'll ever place on it is 200 amps, it's a fused system.This was the ONLY bus bar I could find that was as compact as it is, but still had 8 x 3/8" lugs and I'm extremely glad that these turned out to be so nice.

## Frequently Bought Together

- Gloaso Busbars 12V Marine Bus Bar 300A with 4x M8 Studs Power Distribution Block, Heavy Duty Battery Terminal Blocks 12 Volt-48V DC 300 Amp for Car/Trucks/Campervan/Yacht/Boat/Solar, Red& Black 2 Pack
- AUTOWIRING Automotive Hi-Flex 110 Amp 16mm² Battery/Starter/Inverter/Welding PVC Cable Wire (Black, 10 Metre)
- Spurtar Battery Isolator Switch 12V 24V 48V 250A Master Battery Kill Switch Power Cut Off Shut Off Selector for Car RV ATV UTV Vehicle Boat On-Off

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/520996839-bus-bar-12v-48v-dc-300a-4x-5-16-m8](https://www.desertcart.ie/products/520996839-bus-bar-12v-48v-dc-300a-4x-5-16-m8)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-03*