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Description
Blue Sea Ml-acr Automatic Charging Relay With Manual Control 24vdc 500aBlue Sea Systems ML ACR Automatic Charging Relay with Manual Control 24V DC 500A Model: 7623 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
Blue Sea Systems ML-ACR Automatic Charging Relay with Manual Control - 24V DC 500A
Model: 7623-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
- Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing
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 | Yes |
| 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 with manual Control 24v
- 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
4.6 ★★★★★
Based on 1721 reviews
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Product Reviews
★★★★★ 5
Good quality
Color: White, Size: 3X-Large
For this item is best to get a size up. They run small, but the quality is very good.😊
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
★★★★★ 5
Very nice shirts but unusually long sleeves
Size: Large, Color: Light Green
PJ PAUL JONES Mens Dress Shirts Wrinkle Free Stretch Button Down Shirt. I bought white, coffee, grey, autumn green and apricot. Colors are true to the ads. I'm 6' , 170 lbs. I bought these in Large. They fit very well in shoulders, chest, and my big belly. As many reviews have stated, the sleeves are unusually long - coming down past my palms to my fingers. I would give them a 4 rating for that but I bought them with the intention of making them short sleeve. The white shirt is just too nice to change so I'll reserve that for weddings and funerals. The apricot is very nice but I just wouldn't wear that color as a casual shirt but it does go with my brown blaser so I'll keep it for rare occasions. I washed them in warm and put them thru warm dryer and didn't notice any shrinkage which I wouldn't
expect with polyester. Very good shirts at very good price.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
A Solid Buy
Size: XX-Large, Color: Black
Purchased this shirt to wear to a concert. I love the material because it's stretchy and flexible unlike the traditional cotton. It's mainly wrinkle free but I ran a warm iron to get out the creases from being folded. I wore this with gray pants and it made my outfit feel put together. The sleeves are very easy to roll up and won't come undone. A very nice shirt to add to your clothing collection.
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Good looking shirt that runs a bit big in sizing.
Size: X-Large, Color: Green Gray
Nice looking shirt for dress up or casual wearing. Feels like silk, pretty wrinkle free. Lots of colors to chose from at a good price. Runs a bit big in size. I found the sleeves very long for me. But I like the casual look, feel and coolness in the heat of summer for a long sleeve shirt.
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Good shirt
Size: X-Large, Color: Sky Blue
Good fitting shirt. Looked good just like image shows
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
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