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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 ★★★★★
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Product Reviews
★★★★★ 4
Good for studying
Format: Hardcover
I like that the book has large margins on each page to add notes. I'm sure you don't care about this review because you have to buy it for a class anyways.
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Reviewed in the United States on January 29, 2014
★★★★★ 4
Satisfied
Format: Hardcover
Arrived in great condition
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Reviewed in the United States on March 15, 2017
★★★★★ 5
Definitely a Must-Have
Scent: Sandalwood
This beard kit is legit. The sandalwood scent is clean and manly without being overpowering, which makes it great for everyday wear. The oils and balms actually soften coarse beard hair, reduce itch, and leave the beard looking healthier and more manageable. Packaging feels premium and the pump bottles are easy to use — no mess, no waste. I’ve tried a lot of beard kits over the years, and this one hits the sweet spot for quality, scent, and value. Highly recommend if you want a well-groomed beard that doesn’t smell like “baby powder mixed with perfume.”
If you have facial hair, you’ll notice a difference after the first use. Worth every penny.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
great product for my beard
Scent: Aged Bourbon
very good product, smells good. Keeps beard soft and controllable
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Works great & smells good!
Scent: Sandalwood
I was concerned the facial wash would be too harsh but thankfully I was wrong. Every part of this kit compliments the other. My skin and beard feel noticeably softer, and I haven't had any acne breakouts. The scent is masculine but not too strong. This is now my new routine.
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Reviewed in the United States on May 21, 2026