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Blue Sea Systems ML-ACR Automatic Charging Relay - 24V DC 500A
Model: 7621-BSS
Automatically manages the charging of two large battery banks
Allows paralleling of battery banks for emergency starting
500 Ampere continuous rating to support high-output alternators
Magnetic Latch (ML)—ACR draws very low current (<40mA to monitor terminal voltage) in the ""ON"" or ""OFF"" states, and draws moderate current for very short time when changing state
Dual sensing—senses charge on both battery banks
Start Isolation (SI)—can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics
Engine Isolation (EI)—can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output
Senses charging on two battery banks
500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine
Specifications
Control Circuit Connection
Tinned Wire
Nominal Voltage
24V DC
Manual Control
No
Engine Isolation
Yes
Mounting
#10
Start Assist
Yes
Start Isolation
Yes
Amperage Operating Current
13mA
Amperage Operating Current when changing state
<7.0A
Terminal Stud Torque
140 in-lb (15.82 Nm)
Continuous Rating
500A
Intermittent Rating
700A (5 min)
Cranking Rating 30 sec
1450A DC
Minimum Operating Temperature
-10° C
Maximum Operating Temperature
60° C
Cable Size to Meet Ratings
4/0 AWG x 2
Live Current Switching
300A @ 12V DC
Stud Material
Tinned Copper
Switching Cycles
100000
Terminal Ring Diameter Clearance
Terminal Ring Diameter Clearance
Terminal Stud Length
1.50in (38.1 mm)
Terminal Stud Size
3/8"" - 16 (M10)
Wire Size
20 AWG
What's in the Box:
ML-ACR Automatic Charging Relay 24v
SPDT Remote Control Contura Switch - ON-OFF-ON
Rates from 0%-36% APR. Payment options through Shop Pay Installments, are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers https://www.affirm.com/licenses.
Facebook Client Reviews
Where do I start! This man is a genius, I may have ordered a amateurs dream from this man, went all out on garmin products from gpsmap screens to the live scope lv34 and to juice them up I went with all powerhouse batteries and charging units! Well now on the boat I’m staring at this out dated minnkota and it just looked out of place so I went ahead and ordered up the KRAKEN! I can’t stop bragging on how much you have helped me, even face timing me on the water to fine tune my Livescope, there is no big box store that could even come close to offer this level of customer service! You will forever be my go to company! Thank you again!
Yoshi Johnson, Illinois
Very fast shipping. Very knowledgeable guy to deal with. I inquired after hours and Chad responded quickly and chatted with me for way longer than necessary because I knew nothing about livescope. Who offers there cell phone number to call with any install questions??? Chad does. I got a friend request from him and accepted. Felt like I bought from someone who values my purchase as well as my friendship. We may never meet but I feel like I have gained a great friend. Thanks Chad for all your time spent explaining what I wanted and giving me choices. This won't be my last purchase..
Mark Teel, Texas
It has been a pleasure dealing with Chad at Chaddy Boys! I had contacted him many times on the phone and has been very helpful! I felt like we had been old friends for a long period of time! Chad sent me many quotes and was very helpful on choosing the electronics setup I was seeking! I ordered my unit and received it on exact date I was quoted! I will definitely be buying from Chaddy Boys again!
Shane Bramlett
This 16 volt battery and Run and Gun Charger is the only way to outfit your boat. Fish all day with no worries. Chad is very knowledgeable and helpful with the everything you need for a great day on the water. Now just waiting for a 36 volt to have the perfect setup. Thanks Chad.
Update* Well we just installed the second battery and run and gun charger. Took out 3 lead acid and about 120 lbs. Looking forward to the new system. Gonna be awesome. Thanks again Chad
Heather & Randy Moore, Florida/Canada
School of Large Mouth on side imaging
We offer on the water Face-Time calls for product install, setup & graph tuning for side-Imaging, down-imaging & livescope! I took this side scan image 4 years ago. How many fish do you count?
Lets get it straight, we’re anglers first..
Never trust a skinny chef. My staff & I are all believers in the product we sell & USE. Whether it’s weekends at the lake, Wednesday night derbys, or the Bassmaster Elite Series. We've got you covered. We pride ourselves on answering the phone & providing you excellent customer service.