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Blue Sea Systems 7601 M-ACR Automatic Charging Relay 12V/24V 65A

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

7601
06/01/2036 8:04 AM
Sale Price

$90.67

3 left at this price

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Usually delivered within 2 days

free shipping

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems M-ACR (Mini Automatic Charging Relay) is designed specifically for boats with outboard engines and small inboard engines equipped with 65 amp or less alternators. This intelligent relay automatically manages dual battery systems, making it ideal when adding a second battery to support larger stereos, trolling motors, fishfinders, or other marine electronics.

The M-ACR combines both batteries during charging for maximum efficiency, then automatically isolates the house battery during engine starts to protect sensitive electronics from voltage drops and electrical noise. Unlike traditional battery isolators, the ACR shares charging sources without creating voltage drop, ensuring both batteries receive optimal charging.

Key Features:

  • Automatic dual battery management without external regulators or complex wiring
  • Start isolation protection safeguards electronics during engine cranking
  • Ignition protected design allows safe installation in gasoline engine compartments
  • LED indicator light displays real-time ACR operating status
  • Compact 2 7/8" x 2 7/8" x 2 5/8" footprint fits space-limited installations
  • Compatible with Blue Sea Systems 360 panel systems
  • Backed by Blue Sea Systems lifetime warranty

Technical Specifications:

  • Nominal voltage: 12V or 24V systems
  • Continuous rating: 65A
  • Intermittent rating: 115A for 2 minutes
  • Operating current: 90mA combined, 15mA open
  • Closing voltage: 13.6V/27.2V (30 second delay)
  • Opening voltage: 12.75V/25.5V (30 second delay)
  • Terminal stud size: 1/4 inch
  • Recommended cable size: 1/0 AWG to meet full rating
  • Over-voltage lockout: 16V at 12V, 32V at 24V
  • Under-voltage lockout: 5V at 12V, 19V at 24V

Simple installation requires no external regulators or additional wiring, making it an ideal plug-and-play solution for recreational boaters upgrading to dual battery systems.

Products specifications

Amperage

65 Amps

Mounting Hardware

Mounting Screws (Sold Separately)

Type

Charging Relays

ISO Approved

UL 1500 and SAE J1171 External Ignition ProtectionIP67 for Immersion

Warranty Details

Lifetime

I sent my order for some comp cams lifters on Monday 1-16-2012 at around 8:30 and the Item was still shipped on the next day Tuesday. This was awesome. I received my product on 1-19-2012. They have had the fastest turn around time that I have ever delt with. I would highly recommend them for your auto parts needs. They also had the cheapest price I could fine, including the shipping fee.<br>I like the fact that they sent me an e-mail that my item had shipped and gave the shipping number for tracking.

So far experience is good, will see if parts show up as they say.

Thank you

Best price by far! Quick shipping great service. Will certainly do business with them again.

very good

easy website with great search engine and amazon check-out

very fast and easy.

using amazon pay is easy I was not able to track the UPS shipment until the day of delivery. Maybe the number did not scan correctly at the time of shipment. Customer service did show it was shipped on time, and it arrived quickly.

Everything was good

I purchased a wiring connector and some additional wiring pins. Super fast shipping. Likely to buy from again.

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