The Blue Sea Systems ML-ACR, or Automatic Charging Relay, is a vital component in marine electrical systems. It automatically manages charging between multiple batteries, ensuring they're optimally charged and isolated when necessary.
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1-2 weeks delivery time The Blue Sea 7622 ML-ACR is a 12V DC magnetic latching Automatic Charging Relay rated 500A continuous, 700A (5 min), and 1450A cranking, designed to automatically combine and isolate two battery banks during charge, discharge, and engine start. It features dual sensing, start isolation, engine isolation, start assist, and integrated manual control with LOCK OFF capability. Built with 3/8"-16 (M10) tinned copper studs (1.50" length), supports 4/0 AWG x2 cable, switching cycles 100,000, operating range −10°C to +60°C, and includes Remote Control Contura Switch PN 2146.
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$ 470.97
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1-2 weeks delivery time The Blue Sea 7620 ML-ACR Automatic Charging Relay is a 12V DC magnetic latching (bi-stable) relay rated 500A continuous, 700A (5 min) and 1450A cranking (30 sec) for automatic combining and isolation of two large battery banks. It features dual sensing, start isolation, engine isolation, start assist, and low standby draw (13mA, <40mA monitor). The unit uses 3/8"-16 (M10) tinned copper studs with 1.50" length, supports 4/0 AWG x2 cable, and includes SPDT Remote Control Contura Switch PN 2146. Operating range −10°C to +60°C, live current switching up to 300A @ 12V DC, weight 2.04 lb.
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$ 418.86
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1-2 weeks delivery time The Blue Sea 7621 ML-ACR is a 24V DC magnetic latching Automatic Charging Relay rated 500A continuous, 700A (5 min) and 1450A cranking (30 sec) for automatic combining and isolation of two large battery banks. It features dual sensing, start isolation, engine isolation, and start assist functions, with low holding current (13mA nominal) and <7A during state change. Built with 3/8"-16 (M10) tinned copper studs with 1.50" length, supports 4/0 AWG x2 cable, switching cycles 100,000, operating range −10°C to +60°C, and includes SPDT Remote Control Contura Switch PN 2146.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time The Blue Sea 7623 ML-ACR is a 24V DC magnetic latching Automatic Charging Relay with manual control, rated 500A continuous, 700A (5 min), and 1450A cranking. It automatically combines and isolates two battery banks during charging, discharge, and engine start, and supports start assist, start isolation, and engine isolation modes. Built with 3/8"-16 (M10) tinned copper studs (1.50" length), supports 4/0 AWG x2 cable, switching cycles 100,000, operating range −10°C to +60°C, and includes Remote Control Contura Switch PN 2146.
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$ 447.57
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How does the Blue Sea ML ACR improve the charging efficiency of a boat's auxiliary battery system?
The Blue Sea ML-ACR Automatic Charging Relay significantly enhances the charging efficiency of a boat's auxiliary battery system by intelligently managing the distribution of charge between multiple battery banks. This is achieved through the 500 amp magnetic latch, which automatically connects battery banks during charging and isolates them when discharging or starting the engine, thus preventing unnecessary battery drain. The ML-ACR's manual control switch offers an added level of safety by allowing for start isolation, protecting sensitive electronics from engine cranking. Additionally, the relay can be configured for temporary isolation of house loads from the engine circuit, ensuring optimal performance and protection for both the auxiliary battery and the main engine circuit.
The Blue Sea ML ACR further enhances the boat's electrical system by offering features specifically designed to protect and optimize engine performance. The ML-Series is engineered to protect sensitive electronics by isolating house loads from the engine circuit during cranking, thereby ensuring that electronics are not subjected to voltage drops. The control switch provides a high level of safety by allowing control with or without power, ensuring seamless operation under various conditions. The system is configured for the isolation of two running engines, helping to protect engine electronics and maximize alternator output. With its bi-stable, heavy-duty construction, the ML-ACR draws very low current while maintaining continuous, reliable operation.
How does the ML-ACR automatic charging relay differ from other battery isolators on the market?
The ML-ACR automatic charging relay from Blue Sea Systems stands out from other battery isolators on the market due to its advanced design and features. Unlike standard battery isolators, the ML-ACR automatically connects and disconnects batteries during charging and isolates them when not in use, ensuring efficient power distribution without the need for a manual switch. It provides added safety and protection for sensitive electronics by isolating house loads from the engine circuit during engine cranking, preventing potential damage. Additionally, the ML-ACR is equipped with a remote battery switch and a manual control option, offering flexibility and control with or without power, which is a significant advantage for marine applications.
How do customer reviews generally describe the reliability and performance of the Blue Sea ML ACR in marine environments?
Customer reviews generally describe the Blue Sea ML ACR as highly reliable and effective in marine environments. Users appreciate its ability to protect sensitive electronics during engine cranking and start isolation, ensuring that house loads are safely managed from the engine circuit. The ML ACR's heavy-duty construction, combined with its low current draw and voltage lockout features, provides an added level of safety, allowing boaters to maintain control with or without power. Additionally, its capability for isolation of two engines while both are running helps to maximize alternator output and protect engine electronics, making it a trusted choice for marine applications.
What types of Blue Sea Systems Marine Electrical Products do you have in your catalog?
Blue Sea Systems Fuse Blocks, Blue Sea Systems Battery Switches, Blue Sea Systems Switch Panels, Blue Sea Systems Cable Clams, Blue Sea Systems Terminal Block, Blue Sea Systems Add-A-Battery Kits, , Blue Sea Systems Circuit Breakers, Blue Sea Systems ML-ACRs, Blue Sea Systems USB, Blue Sea Systems Fuse Holders, Blue Sea Systems 360 Panels