Sign In
BLUE SEA SYSTEMS
Starting Isolation (SI) Dual Sensing Automatic Charging Relay
- Model # 8646283 | Manuf. # 7610
- In Stock: Available for immediate shipment.
We Won't Be Beat—Low Price Guarantee
West Marine will gladly match most U.S. based competitor's price on identical, in-stock items within 30 days of purchase.
Learn More
Starting Isolation (SI) Dual Sensing Automatic Charging Relay
- Automatically combines batteries during charging, isolates batteries during engine cranking and when not charging
- Senses charge source on either battery bank
- Under voltage lockout—won’t close when the lower battery is below 10.8V@12V or 21.6V @24V operation
This device allows temporary isolation of house loads from the engine circuit during engine cranking to protect sensitive electronics. It automatically combines battery banks during the charging cycle and isolates them while discharging. 12/24 Volt auto ranging voltage input. Hermetically sealed contacts/vaporproof/ignition protected for use aboard gasoline powered boats. Remote LED output indicates relay state away from ACR; LED light indicates when batteries are combined. Supports high-output alternators up to 120A.
- Amps: 120A continuous @12/24V; 210A for 2min.; 280A 5sec. surge
- Volts: 12/24V DC; Closing voltage 13.5V/27V; Opening voltage 12.7V/25.4V; 34 sec. delay
- Dimensions: 3.9"L x 3.5"W x 1.9"H
- Approvals: ISO 8846, CE, Meets SAE J1171 external ignition protection requirements
- Waterproof: Rated IP67-temporary immersion for 30 minutes
- Warranty: Five years
Manufacturer's Documents
Starting Isolation (SI) Dual Sensing Automatic Charging Relay
Product Specs
The West Advisor
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.
