--- product_id: 93280537 title: "Blue Sea Systems Automatic Charging Relays (ACRs)" brand: "blue sea systems" price: "1500 Lei" currency: RON in_stock: true reviews_count: 5 category: "Blue Sea Systems" url: https://www.desertcart.ro/products/93280537-blue-sea-systems-automatic-charging-relays-acrs store_origin: RO region: Romania --- # 120A continuous power Integrated LED status indicator Auto-ranging 12/24V input Blue Sea Systems Automatic Charging Relays (ACRs) **Brand:** blue sea systems **Price:** 1500 Lei **Availability:** βœ… In Stock ## Summary > πŸ”‹ Stay charged, stay ahead β€” power your journey with confidence! ## Quick Answers - **What is this?** Blue Sea Systems Automatic Charging Relays (ACRs) by blue sea systems - **How much does it cost?** 1500 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/93280537-blue-sea-systems-automatic-charging-relays-acrs) ## 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 - β€’ **Status at a Glance:** Integrated LED indicator keeps you informed of relay operation without guesswork. - β€’ **Battery Peace of Mind:** Automatically isolates and charges dual batteries, protecting your power system and extending battery life. - β€’ **Powerhouse Performance:** Delivers a robust 120 Amp continuous current rating for reliable battery management. - β€’ **Effortless Installation:** Side and bottom knockouts plus quick-connect terminals make wiring a breeze. - β€’ **Smart Voltage Adaptation:** Automatically adjusts between 12V and 24V systems, ensuring seamless compatibility. ## Overview Blue Sea Systems Automatic Charging Relay (ACR) is a high-performance 120 Amp continuous rating device designed for 12 or 24 volt DC systems. Featuring auto-ranging voltage input and an integrated LED status indicator, it ensures efficient, automatic battery isolation and charging. With easy installation options and reliable operation, it’s the essential upgrade for managing dual battery setups in automotive and marine applications. ## Description 120 Amp continuous rating 12/24V DC auto ranging voltage input Designed for 12 or 24 volt systems. Side and bottom knockouts for cable connections. Integrated LED indicates ACR status. Review: Works - Easy install, does what it states. "House" battery is separated then charges after the motor is running. Good piece of mind product. I didn't buy the combine/off switch. Didn't see much point. If I need to combine I'll use a jumper. I just wanted to separate and charge two batteries. This works. Review: Very nice - This was exactly what I needed to charge my cargo trailer battery. Opens on at 13.6v and closes at 12.8v to keep everything isolated. Simple to use and wire. ## Features - 120 Amp continuous rating - 12/24V DC auto ranging voltage input - Designed for 12 or 24 volt systems ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BFVGVA6 | | Best Sellers Rank | 125,929 in Automotive ( See Top 100 in Automotive ) 553 in Car Relays | | Brand | Blue Sea Systems | | Coil Resistance | 100 Milliohms | | Coil Voltage | 24 Volts | | Connector Type | Quick Connect | | Connector type | Quick Connect | | Contact Current Rating | 120 Amps | | Contact Material | Silver | | Contact Type | Normally Open | | Contact material | Silver | | Contact type | Normally Open | | Current Rating | 120 Amps | | Current rating | 120 Amps | | Customer Reviews | 4.8 out of 5 stars 91 Reviews | | Included Components | AUTO CHARGE RELAY 120A 12/24V | | Item Type Name | AUTO CHARGE RELAY 120A 12/24V | | Manufacturer | Blue Sea Systems | | Manufacturer Part Number | 7611-BSS | | Maximum Switching Voltage | 24 Volts | | Minimum Switching Voltage | 12 Volts (DC) | | Model Number | 7611 | | Mounting Type | Tabletop | | Mounting type | Tabletop | | Number of Terminals | 2 | | Operation Mode | Automatic | | UPC | 632085076115 | | Wattage | 1440 watts | ## Product Details - **Connector type:** Quick Connect - **Contact material:** Silver - **Contact type:** Normally Open - **Current rating:** 120 Amps - **Mounting type:** Tabletop ## Images ![Blue Sea Systems Automatic Charging Relays (ACRs) - Image 1](https://m.media-amazon.com/images/I/91ToT8lV8AL.jpg) ![Blue Sea Systems Automatic Charging Relays (ACRs) - Image 2](https://m.media-amazon.com/images/I/8111KqcXroL.jpg) ![Blue Sea Systems Automatic Charging Relays (ACRs) - Image 3](https://m.media-amazon.com/images/I/71jtywLrdSL.jpg) ![Blue Sea Systems Automatic Charging Relays (ACRs) - Image 4](https://m.media-amazon.com/images/I/81FXsQE-JaL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works *by R***M on 4 September 2025* Easy install, does what it states. "House" battery is separated then charges after the motor is running. Good piece of mind product. I didn't buy the combine/off switch. Didn't see much point. If I need to combine I'll use a jumper. I just wanted to separate and charge two batteries. This works. ### ⭐⭐⭐⭐⭐ Very nice *by M***T on 22 October 2021* This was exactly what I needed to charge my cargo trailer battery. Opens on at 13.6v and closes at 12.8v to keep everything isolated. Simple to use and wire. ### ⭐⭐⭐⭐⭐ Important to isolate batteries and charge them independently of bringing linked together *by W***P on 17 May 2026* Easy to install, I added a relay to disconnect it from ground when the battery switch is turned to off ## Frequently Bought Together - Blue Sea Systems 7611 AUTO CHARGE RELAY 120A 12/24V, Black,Yellow - Blue Sea Systems 5511e e-Series Battery Switch Dual Circuit Plus, Red - Blue Sea Systems 6006 m-Series Battery Switch ON/OFF with Knob, Red --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/93280537-blue-sea-systems-automatic-charging-relays-acrs](https://www.desertcart.ro/products/93280537-blue-sea-systems-automatic-charging-relays-acrs) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-07-08*