---
product_id: 3560749
title: "Blue Sea Systems 7721 Fuse Block Safety SEA/AMG"
brand: "blue sea systems"
price: "¥9243"
currency: JPY
in_stock: true
category: "Blue Sea Systems"
url: https://www.desertcart.jp/products/3560749-blue-sea-systems-7721-fuse-block-safety-sea-amg
store_origin: JP
region: Japan
---

# 300A current rating Sealed cover for harsh marine environments Ignition protected for marine safety Blue Sea Systems 7721 Fuse Block Safety SEA/AMG

**Brand:** blue sea systems
**Price:** ¥9243
**Availability:** ✅ In Stock

## Summary

> 🛥️ Power your boat with confidence — fuse protection that rides the waves!

## Quick Answers

- **What is this?** Blue Sea Systems 7721 Fuse Block Safety SEA/AMG by blue sea systems
- **How much does it cost?** ¥9243 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3560749-blue-sea-systems-7721-fuse-block-safety-sea-amg)

## 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

- • **Marine-Grade Safety:** Ignition protected to ensure flawless operation on gasoline and diesel boats
- • **Trusted Performance:** Blue Sea Systems’ 7721 model boasts a stellar 4.9-star rating from 150+ marine pros
- • **Certified Compliance:** Meets ABYC/USCG insulation standards for peace of mind and regulatory confidence
- • **Compact & Lightweight:** Sleek 7.75 x 4 x 2 inch design weighing just 2.4 ounces fits seamlessly in tight spaces
- • **Ultimate Fuse Protection:** Sealed cover guards against salt, moisture, and corrosion for long-lasting reliability

## Overview

The Blue Sea Systems 7721 Fuse Block Safety SEA/AMG is a compact, ignition-protected fuse block designed specifically for marine use. Rated for 300 amps and 32 volts, it features a sealed cover that shields fuses from harsh saltwater environments and meets ABYC/USCG insulation requirements. Lightweight and DIN rail mountable, it’s a trusted choice among boating professionals for reliable, long-lasting electrical safety.

## Description

Ignition protected for installation aboard gasoline or diesel powered boats Sealed cover protects fuses from the harsh marine environment.

## Features

- Ignition protected for installation aboard gasoline or diesel powered boats
- Sealed cover protects fuses from the harsh marine environment
- Insulating cover satisfies ABYC/USCG insulation requirements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004ZJ0WEQ |
| Best Sellers Rank | #117,641 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Fuse Blocks (Tools & Home Improvement) |
| Brand Name | Blue Sea Systems |
| Color | black |
| Current Rating | 300 A |
| Customer Reviews | 4.9 4.9 out of 5 stars (153) |
| Global Trade Identification Number | 00632085077211 |
| Included Components | FUSE BLOCK SAFETY SEA/AMG |
| Item Dimensions | 7.75 x 4 x 2 inches |
| Item Type Name | FUSE BLOCK SAFETY SEA/AMG |
| Item Weight | 2.4 ounces |
| Manufacturer | Blue Sea Systems |
| Material Type | iron |
| Model | 7721 |
| Mounting Type | DIN Rail Mount |
| Number of Items | 1 |
| Part Number | 7721-BSS |
| Specification Met | Abyc/Uscg Insulation Requirements |
| UPC | 632085077211 696582459314 995889633541 611104332241 012302849973 |
| Voltage | 32 volts |
| Warranty Description | LIMITED WARRANTY |

## Product Details

- **Brand:** Blue Sea Systems
- **Item dimensions L x W x H:** 7.75 x 4 x 2 inches
- **Material:** iron
- **Specification Met:** Abyc/Uscg Insulation Requirements
- **Voltage:** 32 volts

## Images

![Blue Sea Systems 7721 Fuse Block Safety SEA/AMG - Image 1](https://m.media-amazon.com/images/I/41Zwkv+33zL.jpg)
![Blue Sea Systems 7721 Fuse Block Safety SEA/AMG - Image 2](https://m.media-amazon.com/images/I/51GKGord7AL.jpg)

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-08*