Marine Battery Selector Switch 4 Position Isolator Power Circuit Cut Off Switch for Boat RV with Tinned Copper Studs 32V DC 300A Continuous Rating

Engineered for reliability in harsh environments, this marine-grade battery selector switch ensures safe, efficient power management across dual-battery systems. Built with durable ABS housing and tinned copper electrical components, it delivers consistent performance while resisting and common in marine and RV applications.FAQ:Q: Can this switch handle both 12V and 24V systems?A: Yes, it is rated for up to 32V DC, making it compatible with standard 12V, 24V, and mixed-voltage setups.Q: What does the OFF-1-2-1+2 configuration mean?A: Position 1 loads from Battery 1 only, Position 2 from Battery 2 only, 1+2 combines both batteries for higher capacity or charging, and OFF fully disconnects all circuits.Q: Are mounting screws included?A: Yes, the package includes the switch and four M10 mounting screws for immediate installation. Item Type: Marine Selector Battery SwitchMaterial: ABS, tinned copperSwitch Position: OFF-1-2-1+2Maximum Voltage: 32V DCContinuous Rating: 300AIntermittent Rating: 500A (5 min)Cranking Rating: 30 seconds 900A per channelBattery Input: 2Mounting Hole: Accepts M10 screwsStud Sizes: 3/8in 16 (M10)Application: Suitable for boat, RVPackage List：1 x Battery Selector Switch4 x Screw

• SEAMLESS POWER TRANSITION: Features a make-before-break contact design that allows switching between battery banks (OFF-1-2-1+2) without interrupting electrical supply to onboard systems—ideal for critical marine and RV applications.
• COMPLETE BATTERY ISOLATION: Safely disconnects your 12V or 24V battery system when not in use, preventing parasitic drain and preserving charge during storage or extended downtime.
• - CONSTRUCTION: Equipped with tinned copper studs and one-piece binding posts for high conductivity, rust resistance, and secure long-term connections that won’t loosen under vibration.
• HIGH-CURRENT RELIABILITY: Rated for 32V DC systems with 300A continuous, 500A intermittent (5 min), and 900A cranking per channel—engineered for demanding marine and recreational vehicle environments.
• UNIVERSAL MOUNTING COMPATIBILITY: Fits standard M10 mounting holes with 3/8in-16 terminal studs; designed for easy integration into boats, RVs, campers, and other dual-battery DC setups.