Feature: 1. 3 LEVELS: The selector has 3 positions. Switch a single battery to a single load bank. Includes AFD(Alternator Field Disconnect) 2. SWITCHABLE BATTERY PACKS: Make before break contact design allows switching between battery packs without interrupting power 3. FLEXIBLE MOUNTING: Enclosure design allows for surface or rear panel mounting, ignition protection safety on gasoline powered boats 4. STUD SIZE: 3/8in‑16 tinned copper studs has maximum conductivity and corrosion resistance, accept 3/8in and M10 ring terminals. 7/8in(22.22mm) stud length can accommodate multiple cable terminals 5. WIDE APPLICATION: Tactile texture indicates knob position by feel only, ideal for marine or RV applications Specification: Item Type: Battery Disconnect Switch Continuous Rating: 350A Intermittent Rating: 600A (5 minutes) Startup Rating For 30 Seconds: 1200A Maximum Working Voltage: 32VDC Terminal Size: 3/8in - 16 (M10) Protection Class: IP66 Switch Level: OFF-1-2 Material: ABS Female Stud: Tinned copper Function: Make before break contact design allows switching between battery packs without interrupting power Application: Ideal for marine or RV applications. Package List: 1 x Battery Disconnect Switch4 x Screw