Blue Sea Systems ML-ACR Automatic Charging Relay, 24V 500A with Manual Control

Experience unparalleled battery management with the Blue Sea Systems ML-ACR Automatic Charging Relay. Engineered for heavy-duty applications, this 24V 500A relay intelligently combines batteries during charging and isolates them when discharging, ensuring optimal performance and protection for your marine or RV electrical system. Its robust, ignition-protected design makes it safe for installation aboard gasoline-powered boats, providing peace of mind in any environment. Upgrade your power system with confidence and reliability today.

In the Box:

• Blue Sea Systems ML-ACR Automatic Charging Relay (Part Number: 7623)
• ML-Series Remote Control Contura Switch (Part Number: 2146)

Key Features:

• High Continuous Amperage: Features a 500 Ampere continuous rating to support high-output alternators, ensuring efficient charging of large battery banks.
• Magnetic Latch (ML)-ACR Technology: Draws very low current (less than 10 mA to monitor terminal voltage; 0A operating current when open or closed) in ON/OFF states, significantly reducing parasitic drain.
• Start Isolation (SI) Capability: Configurable for temporary isolation of house loads from the engine circuit during cranking, safeguarding sensitive electronics from voltage drops.
• Engine Isolation (EI) Capability: Allows for isolation of two engines while both are running, protecting engine electronics and maximizing alternator output.
• Manual Control & Lock-Off: Integrated manual control knob provides an added layer of safety, allowing control with or without power, and a 'LOCK OFF' capability for secure servicing.
• Dual Sensing: Intelligently senses charging on both battery banks, optimizing charge distribution.
• Remote LED Output: Provides remote indication of battery status, showing when banks are combined, isolated, in voltage lockout, or in start/engine isolation.
• Robust Connectivity: Equipped with 3/8"-16 tin-plated copper studs and 7/8" (22mm) stud length for maximum conductivity, corrosion resistance, and acceptance of multiple cable terminals.
• High-Reliability Contacts: Silver alloy contacts ensure superior reliability for switching live loads.
• Marine-Grade Protection: IP66 rated for water resistance against powerful jets and Ignition Protected (ISO 8846, SAE J1171) for safe installation on gasoline-powered boats.

Recommended Pairings:

• Enhance system monitoring with the Blue Sea Systems Remote Control Panel (PN 1147).
• Simplify bus bar connections with the Blue Sea Systems ML-Series Link Bus (PN 9160).

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.