---
product_id: 99891529
title: "Bay Marine Supply BusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8\" & 3/8\" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA"
brand: "bay marine supply"
price: "€ 93.42"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fi/products/99891529-bay-marine-supply-busbar-dual-250-amp-4-post-power
store_origin: FI
region: Finland
---

# 250A max power Dual 3/8" stainless steel posts Corrosion-resistant with electrical grease Bay Marine Supply BusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8" & 3/8" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA

**Brand:** bay marine supply
**Price:** € 93.42
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your passion with rugged, reliable distribution!

## Quick Answers

- **What is this?** Bay Marine Supply BusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8" & 3/8" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA by bay marine supply
- **How much does it cost?** € 93.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/99891529-bay-marine-supply-busbar-dual-250-amp-4-post-power)

## Best For

- bay marine supply enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium nickel-plated brass contacts and stainless steel posts ensure unbeatable corrosion resistance.
- • **Made in the USA:** Crafted domestically for quality assurance and reliability you can trust.
- • **Compact & Covered:** Sleek dimensions with a bright yellow cover for easy identification and added safety.
- • **Versatile Connections:** Flexible stud options with four 5/16" or 3/8" studs per side, plus secure #8-32 steel screws.
- • **Powerhouse Performance:** Handles up to 250 Amps at 12Vdc for demanding marine, solar, and automotive setups.

## Overview

The Bay Marine SupplyBusBar is a dual 250 Amp, 4-post power distribution block featuring durable 3/8" stainless steel posts and nickel-plated brass contacts. Designed for marine, solar, and automotive applications, it includes corrosion-preventing electrical grease and offers flexible stud configurations. Compact and covered with a bright yellow cap, this USA-made unit delivers dependable, high-capacity electrical distribution.

## Description

Bay Marine SupplyBusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8" & 3/8" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA

## Features

- Complimentary electrical grease (7g tube) is included to help prevent metal corrosion and galling
- Max Amperage: 250 Amps @ 12Vdc –– Max Voltage: 48Vdc
- Connections: Choice of Four 5/16" or 3/8" Studs on each side, or mix of 5/16" Studs on one side and 3/8" Studs on the other side with Three #8-32 Steel Screws on each side
- Dimensions: 1.772 x 5.716 x 2.975 inch, (2 x 5.366 x 3.228 inch with cover)
- Nickel plated brass contact plate & stainless steel connection posts; 3/8" & 3/8" model has a red base, others have a black base. All covers are yellow

## Product Details

- **Current Rating:** 250 Amps
- **Connector Type:** Post
- **Number Of Contacts:** 4
- **Mounting Type:** DIN Rail Mount
- **Material:** Stainless Steel, Brass
- **Color:** Red
- **Brand:** Bay Marine Supply
- **Voltage:** 48 Volts
- **Number Of Poles:** 4
- **Product Dimensions:** 5.72"W x 2.98"H

## Images

![Bay Marine Supply BusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8" & 3/8" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA - Image 1](https://m.media-amazon.com/images/I/71rTqDLH9SL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bush bar
*by Z***A on August 20, 2024*

Muy útil y fácil de bregar

### ⭐⭐⭐⭐⭐ Nice product!
*by S***� on March 28, 2024*

I mounted this to the top of my battery bracket for my Sea-Doo, overall nice product and worked very well!

### ⭐⭐⭐⭐⭐ Perfect component for 12v power interface.
*by M***R on February 16, 2019*

I have a 16 ft enclosed trailer. I wanted interior lighting, back up lighting, camera, and electric jack with inboard 12v battery to operate trailer when not vehicle connected. To do this appropriately, 4 pin pigtail was converted to standard 7 pin, junction marine junction box on tongue. The Marine Bus was necessary to use interior to interface connection to battery, pos/neg 8 gauge connection to exterior junction box, and interior fuse box. From fuse box all components, all above components interface. This allows interior battery to charge when connected to vehicle, and trailer to rely on larger power system from truck. In short, perfect interface for my power hub project.

## Frequently Bought Together

- Bay Marine Supply BusBar - Dual 250 Amp 4-Post Power Distribution Block - 3/8" & 3/8" Stainless Steel Posts for Marine, Solar, and Automotive Use - Made in USA
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**Shop now:** [https://www.desertcart.fi/products/99891529-bay-marine-supply-busbar-dual-250-amp-4-post-power](https://www.desertcart.fi/products/99891529-bay-marine-supply-busbar-dual-250-amp-4-post-power)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-17*