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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 29 reviews
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Product Reviews
★★★★★ 5
Almost Perfect
Color: Pink+purple
EDITED TO ADD: the seller reached out after I left this review and told me the heads are replaceable! Mine didn't come with extra heads and I didn't realize they came off. Thank for reaching out! It looks like the product even comes with replacement heads now and you can also buy them separately. Perfect! These are great.
_________
My kids love these toothbrushes and I love that they're rechargeable without needing batteries. However, the charging feature is almost completely negated by the fact that you can't replace the heads! It would be a 5 star if you could swap those out.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Very cute and effective!
Color: Pink+purple, Color: Pink+purple
Very cute and effective brush! I love that there are different settings for different ages and the lowest is soft enough for my 3 year old. She LOVED choosing from the stickers to put on and there’s more left over for when she wants to change them. Stays charged for quite a long time. Would repurchase!
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Perfect kids electric toothbrush
Color: Pink+purple
My child loves this toothbrush. I love that it’s rechargeable and comes with extra brush heads. Very suitable for kids and a great value.
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Reviewed in the United States on April 1, 2026
★★★★★ 4
Good quality toothbrush. However..
Color: Pink+purple
Got this for our 3-year-old granddaughter who needs to keep her teeth clean. Problem is, it tickles her teeth so is not used to the extended should be. Don't know how to solve that issue, but it is a good toothbrush.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Kids Toothbrush
Color: Red+blue
Purchased this toothbrush for my 5yr old! He loves it especially because it comes in his favorite colors. The prices is great as well! The charge lasts forever. I have only charged it once since I purchased. I purchased it for travel through Europe so I could throw out the toothbrush heads. The customer service is 10/10. Reached out regarding replacement brush heads because I know my son will throw a fit if they aren’t the same ones and told us they will be available for purchase and sending us some in the meantime.
So now I will also be purchasing the matching water flosser!
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Reviewed in the United States on January 28, 2026