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Description
Blue Sea Ml-acr Automatic Charging Relay 24vdc 500aBlue Sea Systems ML ACR Automatic Charging Relay 24V DC 500A Model: 7621 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 - 24V DC 500A
Model: 7621-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 | 24V 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 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:
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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
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Best Sunscreen and Reef Safe
Style: Spray (6 Oz)
I've been using this sunscreen for a couple of years now and this is the one! The lotion and the spray are both great, smell good and are reef friendly and organic. They are pricey but my skin appreciates the extra!
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Reviewed in the United States on July 22, 2024
★★★★★ 5
Great sunscreen that smells good too!
Style: Kids SPF 50, Size: 5 Fl Oz (Pack of 1), Style: Kids SPF 50, Size: 5 Fl Oz (Pack of 1)
This stuff actually smells good and the scent doesn't smell like chemicals. It comes out clear which is perfect because I bought it for my little blonde headed, fair skinned 16 month old. It's nice to not have his hair looking all weird with white sunscreen spray. Overall, very pleased with it! Came just in time for our trip to the zoo the other day!
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Reviewed in the United States on October 25, 2025
★★★★★ 5
Worth it
Style: Kids SPF 50, Size: 5 Fl Oz (Pack of 1)
Hands down the best sunscreen, we use it for the kids and for my wife and I as well. Does an amazing job and it smells good also.
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Reviewed in the United States on July 24, 2025
★★★★★ 5
Makes me feel safer
Style: Kids SPF 50, Size: 5 Fl Oz (Pack of 1)
Doesn't stink and I use it daily
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2025
★★★★★ 5
Smells great and works well
Style: Kids SPF 50, Size: 5 Fl Oz (Pack of 1)
This worked well for the summer. No one experienced any burns while using it and reapplying. This also smells fantastic. Would definitely recommend and would buy again.
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Reviewed in the United States on August 20, 2024