---
product_id: 20918658
title: "Blue Sea Systems 7189 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 150A"
brand: "blue sea systems"
price: "€ 110.39"
currency: EUR
in_stock: true
reviews_count: 13
category: "Blue Sea Systems"
url: https://www.desertcart.fi/products/20918658-blue-sea-systems-7189-285-series-thermal-circuit-breakers-surface
store_origin: FI
region: Finland
---

# 150A high current rating Ignition protected for engine room safety Surface mount for easy installation Blue Sea Systems 7189 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 150A

**Brand:** blue sea systems
**Price:** € 110.39
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up with confidence—safety and control in one breaker!

## Quick Answers

- **What is this?** Blue Sea Systems 7189 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 150A by blue sea systems
- **How much does it cost?** € 110.39 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/20918658-blue-sea-systems-7189-285-series-thermal-circuit-breakers-surface)

## 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

## Key Features

- • **Engine Room Ready:** Ignition protected and water resistant—perfect for gasoline-powered boats
- • **Trusted Durability:** Backed by a 5-year warranty to keep your systems running worry-free
- • **User-Friendly Design:** Visible trip lever and face-mounted terminal studs for quick diagnostics and hassle-free installation
- • **Reliable Trip-Free Safety:** Automatically trips and prevents reset during faults for ultimate protection
- • **Dual Function Power Control:** Combines switch and circuit protection in one sleek unit

## Overview

The Blue Sea Systems 7189 285 Series Thermal Circuit Breaker is a robust 48V DC, 150A surface-mount breaker that integrates switching and circuit protection. Designed for medium-duty applications like windlasses and electric winches, it features a trip-free mechanism, ignition protection for engine room installation, and a visible trip indicator. With easy installation and a 5-year warranty, it’s a trusted choice for professionals demanding reliable, safe power management.

## Description

Circuit protection and switch combined in a single medium duty breaker. Ideal for windlass and electric winch applications, these surface mounted medium duty circuit breakers function as a switch, but also provide tailored circuit protection. A visible lever shows when the breaker has tripped and cannot be held in the ON position if a fault is detected. Ignition protected and water resistant, they can be installed almost anywhere; including the engine room of gasoline powered boats. Connected terminal caps protect terminals from accidental contact and help to prevent cross current shorts. Terminal studs are located on the face of the circuit breaker for easy installation.

Review: Love these. - Works great. Love that you can use it as a switch.
Review: It works, though I haven't tested the shorting capability yet. I like the shut-off switch. - Initially I was going to buy a less-expensive circuit breaker (maybe even a fused connection) for an inverter that I added to a diesel truck that I own. After looking into it, and looking at what some of the respected truck body/equipment manufacturers use, I went for this breaker. I like that I can hit the red button and shut the circuit off. I store the truck with this switch in the 'off' position just for added safety. I mounted it inside of the battery box of the truck on the side-wall of the box. Drilled through the steel in two places to mount it at the best angle.

## Features

- Combine switching and circuit protection into single switch
- Drop in replacement for 185 series circuit breakers
- Trip-Free feature means switch cannot be held in ON position when a fault is detected
- Ignition protected; can be installed in engine rooms of gasoline powered boats
- Five-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0051OWRHE |
| Best Sellers Rank | #11,160 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Replacement Circuit Breaker Switches |
| Brand | Blue Sea Systems |
| Brand Name | Blue Sea Systems |
| Circuit Breaker Type | Standard circuit breaker |
| Current Rating | 150 Amps |
| Customer Reviews | 4.6 out of 5 stars 182 Reviews |
| Global Trade Identification Number | 00632085071899 |
| Included Components | Great Product |
| Item Type Name | Great Product |
| Item Weight | 0.35 Pounds |
| Manufacturer | Blue Sea Systems |
| Model | 7189 |
| Mounting Type | Surface Mount |
| Number Of Poles | 1 |
| Number of Poles | 1 |
| Part Number | 7189-BSS |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 632085071899 |
| Unit Count | 1.0 Count |
| Voltage | 48 Volts (DC) |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Blue Sea Systems
- **Current Rating:** 150 Amps
- **Circuit Breaker Type:** Standard circuit breaker
- **Mounting Type:** Surface Mount
- **Number Of Poles:** 1

## Images

![Blue Sea Systems 7189 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 150A - Image 1](https://m.media-amazon.com/images/I/7141gXn4o6L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love these.
*by J***. on January 6, 2026*

Works great. Love that you can use it as a switch.

### ⭐⭐⭐⭐⭐ It works, though I haven't tested the shorting capability yet. I like the shut-off switch.
*by H***E on December 31, 2024*

Initially I was going to buy a less-expensive circuit breaker (maybe even a fused connection) for an inverter that I added to a diesel truck that I own. After looking into it, and looking at what some of the respected truck body/equipment manufacturers use, I went for this breaker. I like that I can hit the red button and shut the circuit off. I store the truck with this switch in the 'off' position just for added safety. I mounted it inside of the battery box of the truck on the side-wall of the box. Drilled through the steel in two places to mount it at the best angle.

### ⭐⭐⭐⭐⭐ They meet their specifications
*by D***D on November 25, 2020*

I bought the 150A version. I ran the same test I did on the less expensive brands of these breakers. The other brands would trip around 80A to 90A (sometimes even less). This brand, I was able to run at 120A for about 45 minutes before I had to reduce the current because my test equipment was getting too hot. These actually appear to work at their rated current. Don't waste your money on the less expensive brands, get these if you are looking for breakers that actually meet their specifications. Also, the measured on resistance was about 0.0005 Ohms. Much better than other brands that I tested. Very nice pads around the studs for very low contact resistance.

## Frequently Bought Together

- Blue Sea Systems 7189 285 Series Circuit Breaker, Surface Mount, 150 Amp, 48V DC
- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
- 10 Gauge Marine Wire,10 AWG 30ft Duplex Marine Grade Wire Tinned Copper Oxygen-Free Insulated Red& Black Electrical Cable for Boat/Automotive/RV/Camper/Trailer

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**Shop now:** [https://www.desertcart.fi/products/20918658-blue-sea-systems-7189-285-series-thermal-circuit-breakers-surface](https://www.desertcart.fi/products/20918658-blue-sea-systems-7189-285-series-thermal-circuit-breakers-surface)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-07-02*