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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
4.1 ★★★★★
Based on 480 reviews
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Product Reviews
★★★★★ 5
Great seller and really nice items!
Size: 6 Panel, Color: White
These room dividers are really lovely. They are great quality and just perfect for providing privacy in a sunroom while still allowing light in to keep the room sunny. I highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Nice divider!
Size: 4 Panel, Color: White
I use this as a "barrier" to keep my cat out of the guest room. I don't have to close the door anymore because the divider allows light and air through. Adds a nice touch to the decor, as well. Very lightweight and serves its purpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 4
Good Room Divider
Size: 4 Panel, Color: White
This room divider worked great to mask my "utility area" in my living room because I'm low on storage space. It's functional and pleasing to the eye, but the quality could be better as there were pieces of debris on the unit and fraying strings. It also can tip over if not positioned just right. I do like the versatility of it though because even though it's a four panel I can fold in one of the panels and use the other three. Overall I like it, the price could be lower based on the quality but its good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
★★★★★ 5
Love my purchase
Size: 4 Panel, Color: Brown
Love my purchase, very beautiful and sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Lightweight and easy to move.
Size: 3 Panel, Color: Dark Gray
Very lightweight, easy to move. Looks nice in my room. I bought this to direct the flow of window unit air conditioner. Because of how we need to arrange the furniture, the a/c blew directly on us, making it uncomfortable. With this in front fifth a/c, I can arrange the panels to direct the flow out into the room instead of on us.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
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