---
product_id: 602737774
title: "Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8\" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive"
brand: "joinfworld"
price: "₨69033"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/602737774-joinfworld-bus-bar-12v-250a-power-distribution-block-4-x
store_origin: LK
region: Sri Lanka
---

# 250A max current rating 4 x 3/8" stud terminals Protective cover & nuts Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive

**Brand:** joinfworld
**Price:** ₨69033
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with precision and safety — don’t get left in the dark!

## Quick Answers

- **What is this?** Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive by joinfworld
- **How much does it cost?** ₨69033 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/602737774-joinfworld-bus-bar-12v-250a-power-distribution-block-4-x)

## Best For

- joinfworld enthusiasts

## Why This Product

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

## Key Features

- • **Safety First Design:** Includes protective covers and nuts to minimize accidental shorts and enhance circuit safety.
- • **Premium Build Quality:** Thickened 4mm copper bus bar plate ensures superior conductivity and durability under load.
- • **Powerhouse Performance:** Handles up to 250A at 12V for robust, reliable power distribution.
- • **Heavy-Duty Connectivity:** Equipped with 4 large 3/8" stud terminals plus #8 screw terminals for versatile wiring options.
- • **Universal Compatibility:** Perfectly suited for automotive, marine, solar, and truck wiring setups to keep your system neat and efficient.

## Overview

The Joinfworld Bus Bar is a dual 12V power distribution block rated for 250A, featuring thick 4mm copper plates and 4 x 3/8" stud terminals for heavy-duty connections. Designed with protective covers and nuts, it ensures safer, neater wiring for automotive, marine, solar, and truck applications. Engineered for durability and versatility, this bus bar streamlines your power setup while preventing shorts and clutter.

## Description

★ Product ★ - A pair of 12v power distribution block, includes a positive power distribution block and a negative power distribution block.  ★ Rating ★ - The battery distribution block rated 250A when work in 12v supplier circuit, and the battery terminal block can handle MAX 48v source power.  ★ 3/8" Stud Terminal ★ - The battery bus bar terminal block includes 4 x 3/8" stud terminal and 3 x #8 screw terminal, which makes the 12v bus bar be able to accept large size terminal connectors and wires.  ★ Protect Cover & Nuts ★ - Each power bus bar will come with a protect cover and two nuts, which helps to shelter as much exposed area as possible to reudeces the risks of accidental contact and prevent short circuit, makes the circuit safer.  ★ Application ★ - The 12 volt bus bar with cover aims to make the wiring of circuit become neat and tidy, preventing mess harness from causing electric short circuit, suitable for automotive, car, truck, marine, boat, solar wiring.

## Features

- Upgrade & Thicken: A pair of 12V power distribution block, includes a red and a black power distribution block(Positive&Negative). Our 12V Bus Bar also features 4MM Thicker Copper Bus Bar Plate which can be connected to wider range of cables
- 250A Rating: The power distribution block bus bar rated 250A when work in 12v circuit, and the battery terminal block can handle MAX 48V
- 3/8" Stud: The battery bus bar terminal block includes 4 x 3/8" studs terminal and 3 x #8 screw terminals, which makes the 12V junction block able to accept large size terminal connectors and wires. The nylon bottom is also secured by M10 post which makes it more fixed and won't strip
- Protect Cover and Nuts: Each power busbar will come with a protect cover and two nuts, which helps to shelter as much exposed area as possible to reduce the risks of accidental contact and prevent short circuit, makes the circuit safer
- Wide Application: The 12 volt buss bar with cover aims to make the wiring of circuit become neat and tidy, preventing mess harness from causing electric short circuit, it is suitable for automotive, car, truck, marine, boat, solar wiring

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Current Rating | 250 Amps |
| Connector Type | Screw |
| Number Of Contacts | 7 |
| Mounting Type | Surface Mounting |
| Material | PA66 Copper |
| Colour | 250A-Bus Bar |
| Brand | Joinfworld |
| Voltage | 12 Volts |
| Number Of Poles | 4 |
| Product Dimensions | 16.8W x 5.1H Centimeters |
| Specification Met | CE |
| Upper Temperature Rating | 90 Degrees Celsius |
| Manufacturer | Joinfworld |
| UPC | 751717591571 |
| Model | BB250-T4M10S3-C-RB-2 |
| Item model number | BB250-T4M10S3-C-RB-2 |
| Mounting Hardware | 1 x Positive&Ground Power Distribution Block; 4 x Mounting Screws |
| Number of items | 2 |
| Wattage | 3 KW |
| Power Source | DC |
| Batteries Included | No |
| Batteries Required | No |
| Does it contain liquid? | No |
| Includes Rechargeable Battery | No |
| Country of Origin | USA |
| Item Weight | 510 g |

## Product Details

- **Current Rating:** 250 Amps
- **Connector Type:** Screw
- **Number Of Contacts:** 7
- **Mounting Type:** Surface Mounting
- **Material:** PA66 Copper

## Images

![Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive - Image 1](https://m.media-amazon.com/images/I/71v-GKOhKwL.jpg)
![Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive - Image 2](https://m.media-amazon.com/images/I/71aQigqMV+L.jpg)
![Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive - Image 3](https://m.media-amazon.com/images/I/71HQg99pbJL.jpg)
![Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive - Image 4](https://m.media-amazon.com/images/I/81ViD7+o-bL.jpg)
![Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive - Image 5](https://m.media-amazon.com/images/I/71O9kTAkPRL.jpg)

## Available Options

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

## Questions & Answers

**Q: is busbar copper or brass?**
A: Joinfworld 250A 12V Bus Bar 3/8" Power Distribution Block is made of COPPER with good electrical conductivity.

## Frequently Bought Together

- Joinfworld Bus Bar 12V 250A Power Distribution Block 4 x 3/8" Studs Marine Bus Bar 12 Volt Battery Busbar Terminal Block for Automotive, Car, Boat, Solar Wiring - Negative&Positive
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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-18*