Battery Disconnect Switch 4 Position Power Off Isolation Switch with AFD for Marine Boat Yacht RV and Large Trucks

Engineered for reliability in demanding mobile power environments, this battery disconnect switch delivers precise control over dual battery systems with integrated safety features.FAQ:1. Does this switch support dual battery systems? Yes, the 1+2 position combines both banks for emergency starting or charging, while 1 or 2 allows isolated use.2. Is it suitable for engine compartments? With an IP66 rating and ignition-protected make-before-break contacts, it’s designed for safe installation in gasoline-powered marine and vehicle engine bays.3. What cable terminals fit the posts? The 3/8in-16 threaded studs accept standard 3/8in ring terminals and M10 lugs; the 7/8in post length supports stacking multiple connectors. Item Type: Battery Disconnect SwitchMaterial: ABS Plastic Shell, Tinned CopperGear Position: OFF-1-2-1+2Maximum Voltage: 32V DCContinuous Rating: 350AIntermittent Rating: 600A (5 minutes)Startup Rating For 30 Seconds: 1200A Grade: IP66Binding Post: 3pcs M10Terminal Size: 3/8in-16 (10M)Post Length: 7/8in (22.22mm), accommodates multiple cable terminalsApplication: Make before break contact design allows switching between battery packs without interrupting powerApplicable: Suitable for Marine Boat RV, large truck, modified carPackage List：1x Battery Disconnect Switch4 x Fixing Screws

• FOUR-POSITION ISOLATION CONTROL: OFF-1-2-1+2 configuration enables flexible management of single or dual battery banks while integrating Alternator Field Disconnect (AFD) for enhanced system safety during switching.
• MAKE-BEFORE-BREAK CONTACT DESIGN: Ensures uninterrupted power delivery when switching between battery sources, critical for maintaining electronics operation in marine and RV environments with ignition protection.
• VERSATILE MOUNTING & COMPACT BUILD: Surface or rear panel installation supported by robust ABS housing; compact footprint fits tight spaces on gasoline-powered boats, RVs, and modified vehicles without compromising accessibility.
• STANDARDIZED HIGH-CURRENT TERMINALS: Equipped with three 3/8in-16 (M10 compatible) tinned copper studs, each 7/8in (22.22mm) long, accommodating multiple cable lugs for secure, low-resistance connections up to 1200A .
• BROAD VEHICLE COMPATIBILITY: Rated for 32V DC systems with 350A continuous, 600A intermittent (5 min), and 1200A startup current—ideal for marine vessels, yachts, recreational vehicles, large trucks, and custom automotive setups.