Blue Sea Systems ML-ACR Automatic Charging Relay

The ML-ACR (Automatic Charging Relay) and ML-RBS (Remote Battery Switch), when paired, offer complete battery management of large battery banks with the push of a button. In addition to automatically sharing the charge from an engine’s alternator between the start and auxiliary battery, the ML-ACR control switch provides momentary battery combining to assist with starting in the event of a low engine battery. Multiple remote battery switches can be easily connected to the ML-ACR with the optional Paralleling Link Bus for a complete remote battery management Subsystem.

• 500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine.
•  Automatically manages the charging of two large battery banks and Allows paralleling of battery banks for emergency starting.
• Magnetic Latch (ML) draws very low current (<40mA to monitor terminal voltage) in the "ON" or "OFF" states & draws moderate current for very short time when changing state
• 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
• LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in Start or Engine isolation
• 3/8" 16 tin-plated copper studs for max conductivity and corrosion resistance

Available in 12V & 24V