
Blue Sea Systems Si Series Automatic Charging Relay
$179.99 · Blue Sea Systems · Part # 661-7610

Add-ons. Optional.
In stock. Ships in 3–5 business days.
Priced in CAD. Secure checkout with Stripe.
Get to know it.
(Start Isolation)Automatically manages the charging of two battery banks and isolates batteries during starting to protect sensitive electronics. 120 Amp continuous rating supports high-output alternators. LED light indicates when batteries are combined with option for remote indicator. Cover side and bottom breakouts for power cable connections. One-piece tin-plated copper stud design never loosens over time.
Specs.
- Part #
- 661-7610
Questions.
Will it work on my boat?
Where the product lists a voltage or horsepower rating, we check it against the boat you saved. For sizing, like shaft length or cover size, measure first or ask the shop.
When does it ship?
In-stock orders ship within 3–5 business days, and we email tracking the day yours ships.
Goes well with. Parts that pair with this one.




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