---
product_id: 23716255
title: "Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige"
brand: "blue sea systems"
price: "€ 120.38"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/23716255-blue-sea-systems-11003-hd-series-heavy-duty-3-position
store_origin: IE
region: Ireland
---

# 500A continuous rating IP66 waterproof protection Supports dual 4/0 AWG cables Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige

**Brand:** blue sea systems
**Price:** € 120.38
**Availability:** ✅ In Stock

## Summary

> 🔋 Command your power like a pro—never get caught powerless again!

## Quick Answers

- **What is this?** Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige by blue sea systems
- **How much does it cost?** € 120.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/23716255-blue-sea-systems-11003-hd-series-heavy-duty-3-position)

## 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

- • **Easy Integration:** Accepts large 4/0 AWG cables with 1/2" terminal studs, meeting ABYC and ISO standards
- • **Premium Build Quality:** Silicon bronze contacts ensure long-lasting corrosion resistance and reliability
- • **Powerhouse Performance:** Handles a robust 500 amps continuous current for heavy-duty demands
- • **Marine-Grade Durability:** IP66 waterproof and ignition protected for safe use on gasoline-powered boats
- • **Seamless Battery Control:** 3-position selector switch isolates or combines battery banks effortlessly

## Overview

The Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD is a marine-grade, ignition-protected switch designed to manage isolated battery banks with a continuous 500A rating at 32VDC. Featuring IP66 waterproofing, silicon bronze contacts, and compatibility with large 4/0 AWG cables, it meets ISO 8846 and ABYC standards, ensuring reliable, safe operation aboard gasoline-powered boats.

## Description

Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige

## Features

- Switches isolated battery banks to all loads. Includes AFD (Alternator Field Disconnect)
- Ignition protected—safe for installation aboard gasoline powered boats
- IP66 waterproof, ISO 8846 and meets ABYC requirements
- Accepts two 4/0 AWG (95mm²) battery cables. Terminal Stud Size: 1/2"
- Continuous Rating: 500A, Max Voltage: 32VDC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | ON-OFF |
| Current Rating | 500 Amps |
| Operating Voltage | 32 Volts |
| Contact Type | Normally Closed |
| Connector Type | Crimp |
| Brand | Blue Sea Systems |
| Terminal | Physical |
| Item dimensions L x W x H | 9 x 7 x 3 inches |
| Circuit Type | 3-way |
| Actuator Type | Manual |
| Contact Material | Silicon Bronze |
| International Protection Rating | IP66 |
| Number of Positions | 3 |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Color | Beige |
| Wattage | 1.6E+4 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Global Trade Identification Number | 00632085110031 |
| Manufacturer | Blue Sea Systems |
| UPC | 632085110031 |
| Model | HD BATTERY SELECTOR 3POS AFD |
| Item Weight | 1 pounds |
| Product Dimensions | 9 x 7 x 3 inches |
| Country of Origin | USA |
| Item model number | 11003 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 11003 |
| National Stock Number | 5930-01-630-2117 |

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 500 Amps
- **Operating Voltage:** 32 Volts
- **Contact Type:** Normally Closed
- **Connector Type:** Crimp
- **Brand:** Blue Sea Systems
- **Terminal:** Physical
- **Item dimensions L x W x H:** 9 x 7 x 3 inches
- **Circuit Type:** 3-way
- **Actuator Type:** Manual

## Images

![Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige - Image 1](https://m.media-amazon.com/images/I/81UgWXRlpSL.jpg)
![Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige - Image 2](https://m.media-amazon.com/images/I/41KL7mdJ2LL.jpg)
![Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige - Image 3](https://m.media-amazon.com/images/I/41FtrX+zt3L.jpg)

## Frequently Bought Together

- Blue Sea Systems 11003 HD-Series Heavy Duty 3 Position Selector Battery Switch with AFD, Beige
- TKDMR 8pcs 4/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 8pcs 3:1 Heat Shrink Tubing

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-14*