Blue Sea 120-Amp SI-Series Automatic Charging Relay

Blue Sea 7610 120 Amp SI-Series Automatic Charging Relay allows temporary isolation of house loads from the engine circuit during engine cranking to protect sensitive electronics. It is designed for boaters who want a relay that automatically combines battery banks during charging and isolates under discharge, activating from any charging source.

With 12/24 volt auto-ranging voltage input and IP67 waterproof rating (30-minute temporary immersion), this relay is ignition protected for safe installation aboard gasoline-powered boats. It activates from alternators, battery chargers, or solar panels, with hermetically sealed, vaporproof contacts, tin-plated copper studs, and a clip-on cover protecting terminal connections. Browse more options in our battery chargers category.

Key Features

• ignition protected
• activates from any charging source

Frequently Asked Questions

What does Start Isolation protect? Sensitive electronics, by temporarily isolating house loads from the engine circuit during cranking.

What charging sources activate this relay? Alternators, battery chargers, or solar panels.

What is this relay's waterproof rating? IP67, rated for 30 minutes of temporary immersion.