BLUE SEA SI-ACR Automatic Charging Relay - 12/24V DC 120A
BLUE SEA SI-ACR Automatic Charging Relay - 12/24V DC 120A
DISCRIPTION
DISCRIPTION
Automatic Charging Relay (ACR)
Smart Battery Management for Dual-Battery Systems
Core Functionality
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🔋 Automatically combines batteries during charging
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⚡ Isolates batteries during engine cranking and when discharging
Key Features
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✅ Protects sensitive electronics by isolating house loads from the engine circuit during cranking
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🔄 Dual sensing — charges from either battery bank
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⚙️ 12/24V auto-ranging voltage input — works with both 12V and 24V systems
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💧 Hermetically sealed contacts — vaporproof for harsh environments
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🔥 Ignition protected — safe for use aboard gasoline-powered boats
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⚡ Supports high-output alternators up to 120A
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🔒 Start Isolation (optional) — temporarily disconnects house loads during engine start to prevent voltage sags/spikes
Optional Features
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🟢 Remote LED Indicator
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Displays ACR status remotely
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Requires optional LED installation
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