ID
1002266
$ 186.89
1-2 weeks delivery time
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The Blue Sea 7611 BatteryLink™ Automatic Charging Relay is a 12/24V DC auto-ranging ACR with 120A continuous and 210A (5 min) intermittent rating, designed to automatically share a single charging source between two battery banks. It features dual sensing, integrated LED status indicator, auxiliary battery priority mode, 3/8"-16 (M10) tinned copper studs with 7/8" length, support for cable sizes up to 1/0 AWG, and IP67 ignition-protected construction. Weight: 1.25 lb.
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Blue Sea 7611 – BatteryLink™ Automatic Charging Relay 12/24V DC 120A, Dual Sensing, Auxiliary Priority
The Blue Sea 7611 BatteryLink™ Automatic Charging Relay (ACR) is designed to automatically share a single charging source between start and auxiliary battery banks in 12V and 24V DC systems. It senses charging on two battery banks and combines them during charge, then isolates them when voltage drops.
The unit supports auxiliary battery priority operation, allowing alternator charging to remain connected to the auxiliary bank longer while the engine is running. The relay features auto-ranging 12/24V input, integrated LED status indication, IP67 protection, and ignition-protected construction for marine engine compartments.
Key Features
- Automatically shares a single charging source with auxiliary battery
- 12/24V DC auto-ranging voltage input
- Dual sensing on two battery banks
- 120A continuous current rating
- Integrated LED status indicator
- Side and bottom knockouts for cable connections
- Clip-on insulating cover over terminals
- 7/8" (22 mm) stud length for multiple cable terminals
- 1/4" × .032" male quick connect terminals for ground and optional features
- Largest battery bank cannot exceed Group 27
Optional Functions
- Auxiliary Battery Priority mode for extended auxiliary charging while engine is running
- Remote LED status indication (requires optional LED)
Electrical Ratings
Nominal Voltage 12V DC / 24V DC Continuous Rating 120A Intermittent Rating 210A (5 min) Operating Current 175 mA @ 12V (combine) / 115 mA @ 24V (combine) / 15 mA (open)
Voltage Control Thresholds
Combine 30 sec 13.6V @ 12V / 27.2V @ 24V Combine 2 min 13.0V @ 12V / 26.0V @ 24V Open Low 12.75V @ 12V / 25.5V @ 24V Overvoltage Lockout 16.0V @ 12V / 32.0V @ 24V
Auxiliary Battery Priority Thresholds
Open Low (Priority Mode) 12.25V @ 12V / 24.5V @ 24V
Connections
Terminal Stud Size 3/8"-16 (M10) Stud Length 7/8" (22 mm) Stud Material Tinned Copper Maximum Cable Size 1/0 AWG Maximum Torque 140 in-lb (15.82 Nm)
Auxiliary Battery Priority Behavior
- Active when engine is running
- Open voltage lowered to 12.25V (from 12.75V) at 12V systems
- Relay remains combined longer to support auxiliary loads
Certifications
- CE Marked
- Ignition Protected
- IP67
- ISO 8846
- SAE J1171
Physical Data
- Weight: 1.25 lb (0.57 kg)
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