---
product_id: 3836444
title: "7187 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 100A"
brand: "blue sea systems"
price: "$108.68"
currency: USD
in_stock: true
reviews_count: 13
category: "Blue Sea Systems"
url: https://www.desertcart.us/products/3836444-7187-285-series-thermal-circuit-breakers-surface-mount-48v-dc
store_origin: US
region: United States of America
---

# 100A high current capacity Ignition protected for engine room safety Surface mount for easy installation 7187 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 100A

**Brand:** blue sea systems
**Price:** $108.68
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up with confidence—where safety meets seamless control!

## Quick Answers

- **What is this?** 7187 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 100A by blue sea systems
- **How much does it cost?** $108.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3836444-7187-285-series-thermal-circuit-breakers-surface-mount-48v-dc)

## 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—safe for gasoline-powered boat environments
- • **Trusted Durability:** Backed by a 5-year warranty to keep your systems running worry-free
- • **Effortless Installation:** Surface mount design with face-located terminal studs for quick, hassle-free setup
- • **Trip-Free Safety Mechanism:** 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 7187 285 Series Thermal Circuit Breaker is a robust 48V DC, 100A surface mount breaker that integrates switching and circuit protection into one compact device. Designed for medium-duty applications like windlasses and electric winches, it features a trip-free mechanism that prevents manual override during faults, ignition protection for safe engine room installation, and terminal caps to prevent shorts. With easy installation and a 5-year warranty, it’s a reliable choice for professionals demanding both performance and peace of mind.

## 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: Great Product arrived as agreed - Worked great! Would order again

## 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 | B0051P01BW |
| Batteries | 1 Unknown batteries required. |
| Best Sellers Rank | #26,874 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Thermal Circuit Breakers |
| Brand | Blue Sea Systems |
| Circuit Breaker Type | Standard |
| Current Rating | 100 Amps |
| Date First Available | April 26, 2011 |
| Global Trade Identification Number | 00632085071875 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.16 ounces |
| Item model number | 7187 |
| Manufacturer | Blue Sea Systems |
| Mounting Type | Surface Mount |
| National Stock Number | 5925-01-617-2055 |
| Number Of Poles | 1 |
| Product Dimensions | 8 x 5 x 3 inches |
| UPC | 632085071875 |
| Voltage | 48 Volts |

## Product Details

- **Brand:** Blue Sea Systems
- **Circuit Breaker Type:** Standard
- **Current Rating:** 100 Amps
- **Mounting Type:** Surface Mount
- **Number Of Poles:** 1

## Images

![7187 285 Series Thermal Circuit Breakers, Surface Mount, 48V DC, 100A - Image 1](https://m.media-amazon.com/images/I/71uPq+k3yBL.jpg)

## Customer Reviews

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

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

### ⭐⭐⭐⭐⭐ Great Product arrived as agreed
*by A***Y on November 20, 2025*

Worked great! Would order again

### ⭐⭐⭐⭐⭐ Marine Breaker
*by R***E on November 17, 2025*

Well made. Count on Blue sea

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.us/products/3836444-7187-285-series-thermal-circuit-breakers-surface-mount-48v-dc](https://www.desertcart.us/products/3836444-7187-285-series-thermal-circuit-breakers-surface-mount-48v-dc)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-23*