---
product_id: 292380885
title: "Bus Bar 12V 300A Heavy Duty Module 4 x 5/16\" (M8) Posts Power Distribution Blocks, 300 Amp Battery Busbar Powerbar 12 Volt-48V DC for Car Truck RV Solar Boat Marine, Red"
brand: "gloaso"
price: "R1125"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Gloaso"
url: https://www.desertcart.co.za/products/292380885-bus-bar-12v-300a-heavy-duty-module-4-x-5
store_origin: ZA
region: South Africa
---

# 300A max current 4x 5/16" (M8) stud posts Fiberglass reinforced nylon cover Bus Bar 12V 300A Heavy Duty Module 4 x 5/16" (M8) Posts Power Distribution Blocks, 300 Amp Battery Busbar Powerbar 12 Volt-48V DC for Car Truck RV Solar Boat Marine, Red

**Brand:** gloaso
**Price:** R1125
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with precision and style — the bus bar that means business!

## Quick Answers

- **What is this?** Bus Bar 12V 300A Heavy Duty Module 4 x 5/16" (M8) Posts Power Distribution Blocks, 300 Amp Battery Busbar Powerbar 12 Volt-48V DC for Car Truck RV Solar Boat Marine, Red by gloaso
- **How much does it cost?** R1125 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/292380885-bus-bar-12v-300a-heavy-duty-module-4-x-5)

## 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

- • **Built to Last:** 6mm thick brass bus bar with nickel plating and stainless steel hardware ensures durability.
- • **Compact & Space-Savvy:** Slim 5.433" x 2.72" x 1.75" design fits tight setups without compromise.
- • **Powerhouse Performance:** Handles up to 300 Amps at 12-48V DC for robust energy distribution.
- • **Safety-First Engineering:** Six removable side plates allow custom wiring access while preventing short circuits.
- • **Premium Materials, Premium Reliability:** Fiberglass reinforced nylon housing offers industrial-grade protection and longevity.

## Overview

The Gloaso Heavy Duty 300 Amp Bus Bar is a compact, high-capacity power distribution block designed for 12V to 48V DC systems. Featuring four 5/16" (M8) stud terminals, a thick 6mm brass bus bar with nickel plating, and a durable fiberglass reinforced nylon cover, it ensures secure, reliable connections. Its innovative six removable side plates provide flexible wiring options while preventing short circuits, making it ideal for professional-grade solar, automotive, and industrial applications.

## Description

Buy Gloaso Heavy Duty 300 Amp Bus Bar with 4X 5/16"(M8) Posts Terminals 12V - 48V DC Battery Busbar with Cover, Red: Connecting Blocks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Zero complaints! Very nice bus bar! - 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.
Review: Very nice distribution block! - Product is very durable and well made! Would definitely recommend!

## Features

- The Power Distribution Block Bus Bar with 4 x 5/8" (M8) stud posts;
- Max. Current: 300 Amp at 12V DC per connection. Max. voltage is 48V DC
- The Battery Bus Bar Box Dimension (L x W x H): 5.433"x 2.72"x 1.75" (138 x 69 x 44.5mm)
- 6mm thicker Brass bus bar plate with stainless steel studs and nuts
- The Heavy Duty Busbar box with Six side removable plates. You can remove the plates or drill hole on plate to let wires and terminals go through very easy and prevent short circuit, which makes your wiring more secure and reliable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08X43PNQG |
| Best Sellers Rank | #94 in Distribution Connecting Blocks |
| Brand Name | Gloaso |
| Color | 300A- 4x5/16" (M8) - Red |
| Connector Type | Screw |
| Current Rating | 300 Amps |
| Customer Reviews | 4.6 out of 5 stars 356 Reviews |
| Included Components | 1 Set 300A Positive Bus Bar with 5/16" Studs Terminals and Cover( Red), Screws |
| Item Dimensions W x H | 1.75"W x 2.72"H |
| Item Type Name | Power Distribution Block |
| Manufacturer | Gloaso |
| Material | Base& Cover Material: Nylon, Glass Fiber reinforced., Bus /Hex Nut Material: Brass, Nickel plated., Stud& Screw Material: Stainless Steel Material Base& Cover Material: Nylon, Glass Fiber reinforced., Bus /Hex Nut Material: Brass, Nickel plated., Stud& Screw Material: Stainless Steel See more |
| Material Type | Base& Cover Material: Nylon, Glass Fiber reinforced., Bus /Hex Nut Material: Brass, Nickel plated., Stud& Screw Material: Stainless Steel |
| Model | FC360-300A-RD |
| Mounting Type | surface |
| Number Of Contacts | 4 |
| Number Of Poles | 4 |
| Number of Positions | 4 |
| Specification Met | CE, RoHS |
| Unit Count | 1 Count |
| Voltage | 12 Volts (DC) |

## 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 /Hex Nut Material: Brass, Nickel plated., Stud& Screw Material: Stainless Steel
- **Color:** 300A- 4x5/16" (M8) - Red
- **Brand:** Gloaso
- **Voltage:** 12 Volts (DC)
- **Number Of Poles:** 4
- **Product Dimensions:** 1.75"W x 2.72"H

## Images

![Bus Bar 12V 300A Heavy Duty Module 4 x 5/16" (M8) Posts Power Distribution Blocks, 300 Amp Battery Busbar Powerbar 12 Volt-48V DC for Car Truck RV Solar Boat Marine, Red - Image 1](https://m.media-amazon.com/images/I/61V9aE1BlAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Very nice distribution block!
*by D***E on September 7, 2025*

Product is very durable and well made! Would definitely recommend!

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Gloaso Heavy Duty 300 Amp Bus Bar with 4X 5/16"(M8) Posts Terminals 12V - 48V DC Battery Busbar with Cover, Red
- 10pcs 1 AWG-3/8 Battery Lugs,Copper Wire Lugs,Heavy Duty Battery Cable Ends,Tubular Ring Terminals,AWG Crimp Wire Ring Lugs,Battery Terminal Connectors with 3:1 Heat Shrink Tubing
- Sanuke 10pcs 1/0 AWG-3/8" Battery Lugs, UL Listed Heavy Duty Wire Lugs Ring Terminal 0 Guage terminals Battery Cable Ends/Terminal Connectors with 3:1 Heat Shrink Tubing

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**Shop now:** [https://www.desertcart.co.za/products/292380885-bus-bar-12v-300a-heavy-duty-module-4-x-5](https://www.desertcart.co.za/products/292380885-bus-bar-12v-300a-heavy-duty-module-4-x-5)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-05-28*