Blue Sea Systems 7610 SI Series Automatic Charging Relay 12V/24V 120A

The Blue Sea Systems 7610 SI Series Automatic Charging Relay (ACR) is a marine-grade battery management solution that automatically combines battery banks during charging and isolates them during discharge. This intelligent relay protects sensitive electronics by temporarily isolating house loads from the engine circuit during engine cranking, preventing voltage drops that can damage equipment.

Key Features:

• Automatic Battery Management: Combines batteries during charging cycle and isolates them when not charging or during engine cranking
• Dual Voltage Operation: 12/24V auto-ranging voltage input works with both 12V and 24V systems
• High Current Capacity: 120A continuous rating, 210A for 2 minutes, 280A for 5-second surge
• Dual Sensing Technology: Detects charge source on either battery bank for automatic operation
• Under-Voltage Lockout: Won't close when lower battery is below 10.8V at 12V (21.6V at 24V) to prevent deep discharge
• Ignition Protected: Meets SAE J1171 external ignition protection requirements for safe use aboard gasoline-powered boats
• Waterproof Construction: IP67-rated hermetically sealed contacts allow temporary immersion for 30 minutes
• Remote LED Output: Indicates relay state and when batteries are combined
• High-Output Alternator Support: Compatible with alternators up to 120A

This relay features hermetically sealed, vaporproof contacts and carries ISO 8846 and CE approvals for marine applications. Compact dimensions of 3-7/8" L × 3-1/2" W × 1-7/8" H allow flexible mounting options. Backed by Blue Sea Systems' five-year warranty.