---
product_id: 42257170
title: "Blue Sea Systems 7143 187 Series Circuit Breaker, Surface Mount, 90A"
brand: "blue sea systems"
price: "$257.33"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.ec/products/42257170-blue-sea-systems-7143-187-series-circuit-breaker-surface-mount
store_origin: EC
region: Ecuador
---

# Blue Sea Systems 7143 187 Series Circuit Breaker, Surface Mount, 90A

**Brand:** blue sea systems
**Price:** $257.33
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Blue Sea Systems 7143 187 Series Circuit Breaker, Surface Mount, 90A by blue sea systems
- **How much does it cost?** $257.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/42257170-blue-sea-systems-7143-187-series-circuit-breaker-surface-mount)

## Best For

- blue sea systems enthusiasts

## Why This Product

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

## Description

Blue Sea Systems 7143 187 Series Circuit Breaker, Surface Mount, 90A

## Features

- About this item
- 90A DC Surface Mount circuit breaker combines switching and circuit protection into a single device
- "Trip Free" design cannot be held "ON" during fault current condition
- Rated IP66 Waterproof
- Max voltage: 48V DC, Interrupt capacity: 5000A @12V, 3000A @ 24V, 1500A @ 42V
- Terminal Size: 5/16"-18

## Images

![Blue Sea Systems 7143 187 Series Circuit Breaker, Surface Mount, 90A - Image 1](https://m.media-amazon.com/images/I/91N6VoG04lL.jpg)

## Available Options

This product comes in different **Pattern, Color, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    my 70 amp version that normally works fine tripped at 60
  

*by S***S on Reviewed in the United States on March 16, 2017*

I use these types of breakers for my solar projects. They come in varying sizes. It allows you to manually open and close the circuit at will without having to move wires. I use these before and after each solar charge controller. This comes in handy for maintenance, trouble shooting a system, or just turning off a portion of the system. They do trip at lower than the rating when the environment gets warmer and that is part of the design. For example, my 70 amp version that normally works fine tripped at 60.5 amps when the temp around the system was over 110F. Ideally you dont want to have the system exposed to temps in that range anyway. After exhausting the heat the breaker worked as usual again.

### ⭐⭐⭐⭐⭐ 







  
  
    Quality materials!
  

*by R***N on Reviewed in the United States on December 4, 2018*

Fantastic high quality circuit breaker that will stand the test of time! I don't know what they put into this marine-grade circuit breaker but it must be good. I use this as a master shut off for all of my auxiliary electronics in my minivan. This switch is repeatedly pressed on and off at least five to 15 times a day!I went through about 5 cheap Chinese marine-grade circuit breakers that claim to be as good as this one. However the cheap Chinese ones either kept breaking, burning out or having current leak when they are in the off position! Quality matters when you're dealing with circuit breakers especially marine-grade ones.From somebody that has wired a lot of electrical stuff this is probably the one thing you do not want to cut corners or skimp money on! You can't go wrong with anything from Blue Sea.If you're going to buy any marine-grade circuit breaker it best be this one!

### ⭐⭐⭐⭐⭐ 







  
  
    Quality breakers are worth every penny
  

*by R***K on Reviewed in the United States on August 14, 2020*

Breakers are important. Completely ignored once installed, they labor in anonymity while saving your wiring and devices from failing and thus putting your life in danger. There are so many junk breakers out there now, made with sketchy materials and shoddy workmanship. If you’re lucky, they trip early and are a constant nuisance. If you’re unlucky they don’t trip at all and your gear, and maybe you, get burned. It isn’t worth it... pay for quality and sleep peacefully. It sure beats cheaping out, and “resting in peace.”

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**Shop now:** [https://www.desertcart.ec/products/42257170-blue-sea-systems-7143-187-series-circuit-breaker-surface-mount](https://www.desertcart.ec/products/42257170-blue-sea-systems-7143-187-series-circuit-breaker-surface-mount)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-23*