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Description
Blue Sea Ml-acr Automatic Charging Relay 12vdc 500aBlue Sea Systems ML ACR Automatic Charging Relay 12V DC 500A Model: 7620 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
Blue Sea Systems ML-ACR Automatic Charging Relay - 12V DC 500A
Model: 7620-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 | 12V 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
- SPDT Remote Control Contura Switch - ON-OFF-ON
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1196 reviews
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Product Reviews
★★★★★ 5
Not bad, good to business. Need more benefit.
Nice card, but less benefit than the personal one. so okay.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
really easy to use i will keep use it!
work really well very please
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Indestructable fun chew toy
Style: Bone
Great industructable toy. Most toys are lucky to sleep through their first night. This one has survived for several weeks and he loves it.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Great toy for aggressive chewers plus cleans my dog’s teeth!
Style: Bone
I didn’t realize when I wrote this review but do now that small dog treats can be put in the ridges in this toy. My dog loves trying to get the treats out. This is an additional bonus to this great toy! This is a durable dog toy with 2 squeakers which are very entertaining to my dog. He loves toys that squeak! The color is great & has not faded since I’ve had it. It has a nice bounce to it when I throw it when we are playing. My dog is an American Pit Bull & has chewed through a lot of dog toys in the past. Not this one! He is an aggressive chewer & this has lasted. I also like the feature of this being a toy in which toothpaste can be applied to clean his teeth. I use Vet’s Best Enzymatic Dog Toothpaste & he loves it! With the way the toy is designed it is very easy to apply the toothpaste & it will not drip from the toy. It stays on toy long enough for my dog to “brush” his teeth while he chews the toy. I am very happy with this dog toy. It was well worth what I paid. I highly recommend!
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Reviewed in the United States on August 2, 2024
★★★★★ 4
Excellent durability but one safety hazard the squeakers comes out.
Style: Bone
Well made for chewing except the squeekers on each end can come out and choke the dog, my dog was chewing on the end of it, and the squeaker came out. I picked it up before he could swallow it. They are choking hazards. That’s the only part that was bad about the product. It’s very sturdy for my little puppy. He uses his mollars. He really gets down to business when he’s chewing 😂
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Reviewed in the United States on March 22, 2026