---
product_id: 5172797
title: "Blue Sea Systems 7622 ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control, Gray"
brand: "blue sea systems"
price: "₹ 45115"
currency: INR
in_stock: true
reviews_count: 13
category: "Blue Sea Systems"
url: https://www.desertcart.in/products/5172797-blue-sea-systems-7622-ml-acr-12v-dc-500a-automatic
store_origin: IN
region: India
---

# 12V coil voltage for seamless integration Automatic + manual dual operation modes 500A heavy-duty current rating Blue Sea Systems 7622 ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control, Gray

**Brand:** blue sea systems
**Price:** ₹ 45115
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay charged, stay unstoppable — power your journey with confidence!

## Quick Answers

- **What is this?** Blue Sea Systems 7622 ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control, Gray by blue sea systems
- **How much does it cost?** ₹ 45115 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/5172797-blue-sea-systems-7622-ml-acr-12v-dc-500a-automatic)

## 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

- • **Smart Dual Control:** Switch effortlessly between automatic charging and manual LOCK OFF for ultimate safety and serviceability.
- • **Built for Adventure:** Trusted by van-builders and off-grid explorers for seamless dual battery management in rugged conditions.
- • **Remote Command Ready:** Includes ML-Series Remote Control Contura Switch for convenient, on-demand battery management.
- • **Fail-Safe Reliability:** Operates flawlessly even without power, ensuring your battery banks stay protected and fully charged.
- • **Power Meets Precision:** Handles up to 500A with marine-grade silver alloy contacts for unmatched durability.

## Overview

The Blue Sea Systems 7622 ML-ACR is a robust 12V, 500A automatic charging relay designed for dual battery setups. Featuring marine-grade silver alloy contacts and both automatic and manual control modes, it ensures safe, efficient charging and battery isolation. Its included remote control switch and LOCK OFF capability provide enhanced safety and convenience, making it a top choice for off-grid adventurers and professional vehicle setups.

## Description

Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing Includes ML-Series Remote Control Contura Switch PN 2146.

Review: Great smart battery isolator for van builds. - I installed this smart battery isolator 3 years ago in my van, and so far it's been working flawlessly. I really like the fact that it allows the charge direction to switch automatically depending on my charging source, and it keeps the house and vehicle batteries fully charged. I do a lot of off-grid camping in remote areas, so the ability to use the house batteries to jump start the engine (if vehicle batteries are low) is important.
Review: Durable unit that works well. - This unit continues to work great after almost five years in my daily driver. I installed this to add a dual battery setup to go along with a winch installation. It has good instruction on how to install and use it. You do need to find a place to install the control switch. It also makes a little bit of a clunk when connecting the two batteries together in normal automatic operation. It is to be expected for a power switching solenoid. The klunk might be minimized with a little creativity in how and where you mount it. I mounted it to a PVC plate above the inner fender of my Tacoma.

## Features

- Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing
- Includes ML-Series Remote Control Contura Switch PN 2146
- Automatically manages the charging of two large battery banks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001VIXLRO |
| Best Sellers Rank | #86,759 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #21 in Boat Battery Switches |
| Brand | Blue Sea Systems |
| Brand Name | Blue Sea Systems |
| Coil Voltage | 12 volts |
| Connector Type | Deutsch Dtm |
| Contact Current Rating | 500 A |
| Contact Material | Silver Alloy |
| Contact Type | Normally Closed |
| Current Rating | 500 A |
| Customer Reviews | 4.7 out of 5 stars 157 Reviews |
| EU Spare Part Availability Duration | 5 years |
| Global Trade Identification Number | 00632085076221 |
| Included Components | Great Product |
| Item Type Name | Great Product |
| Item Weight | 0.79 kg |
| Manufacturer | Blue Sea Systems - Sports |
| Minimum Switching Voltage | 12 volts |
| Model | 7622 |
| Mounting Type | Surface Mount |
| Number of Items | 1 |
| Number of Terminals | 2 |
| Operation Mode | Automatic,Manual |
| Part Number | 7622 |
| Specification Met | Marine-grade Electrical Equipment and Battery Isolator Standards |
| UPC | 632085076221 |
| Warranty Description | Warranty |
| Wattage | 10 Milliwatts |

## Product Details

- **Connector Type:** Deutsch Dtm
- **Contact Material:** Silver Alloy
- **Contact Type:** Normally Closed
- **Current Rating:** 500 Amps
- **Mounting Type:** Surface Mount

## Images

![Blue Sea Systems 7622 ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control, Gray - Image 1](https://m.media-amazon.com/images/I/613OCJm5quL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great smart battery isolator for van builds.
*by S***S on November 22, 2024*

I installed this smart battery isolator 3 years ago in my van, and so far it's been working flawlessly. I really like the fact that it allows the charge direction to switch automatically depending on my charging source, and it keeps the house and vehicle batteries fully charged. I do a lot of off-grid camping in remote areas, so the ability to use the house batteries to jump start the engine (if vehicle batteries are low) is important.

### ⭐⭐⭐⭐⭐ Durable unit that works well.
*by J***M on July 12, 2026*

This unit continues to work great after almost five years in my daily driver. I installed this to add a dual battery setup to go along with a winch installation. It has good instruction on how to install and use it. You do need to find a place to install the control switch. It also makes a little bit of a clunk when connecting the two batteries together in normal automatic operation. It is to be expected for a power switching solenoid. The klunk might be minimized with a little creativity in how and where you mount it. I mounted it to a PVC plate above the inner fender of my Tacoma.

### ⭐⭐⭐⭐⭐ overlanding piece of mind
*by D***T on July 30, 2023*

this charging relay is awesome, it really makes the dual battery setup shine. I venture out 3-4 hours one way outside of any cell phone coverage often, this charging relay with a second battery puts my mind at ease. on my last trip and first time using this setup I latched the two batteries together for the 4 hour hwy portion. once I hit the dirt I unlatched the two batteries till I hit pavement again a couple of days later. generally I leave the remote switch in auto mode in the city. this charging relay is smart and does all the thinking for you. I am an land/marine electrician and woods adventurer and can't recommend this unit enough, just buy it and be done!

## Frequently Bought Together

- Blue Sea Systems 7622 ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control, Gray
- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
- Blue Sea Systems 6006 m-Series Battery Switch ON/OFF with Knob, Red

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-09-08*