500A Marine Heavy Duty Battery Disconnect Switch, 4 Position 3 Stud Power Disconnect Cut Off Isolator, Battery Selector Switcher, with Knob, for Marine, Boats, RVs, Cars

Description:This heavy-duty battery selector switch is crafted from premium ABS and tinned copper for oxidation prevention and long-lasting strength. Designed for marine and automotive use, it features a 4-position selector (OFF–1–2–1+2) for flexible dual battery control. With IP66 water prevention rating and ignition protection, it ensures reliable electrical performance even in tough environments. The “make before break” contacts design allows seamless power transfer between batteries without interruptions. Capable of handling 500 amps of continuous current, this switch delivers dependable performance. Easy to install with standard M6 mounting holes and M12 terminal studs, it’s the ideal upgrade for any power system.Item Type: Battery Disconnect SwitchMaterial: ABS, Tinned copperSwitch Positions: 4(OFF-1-2-1+2)Battery Combine: YesAlternator Field Disconnect: NoMaximum Voltage: 32V DCTerminal Stud Torsion: 220 in-lb (24.86 Nm)Continuous Rating: 500AIntermittent Rating: 700A (5 min)Cranking Rating 10 sec: 2750ACranking Rating 1 min: 1150ABattery Inputs: 2Cable Clearance For 4/0 AWG Cables: Approx. 27.94 mm/1.10inCable Quantity to Meet Ratings: Two Cables or TerminalCable Size to Meet Ratings: 4/0 AWG (120mm²)Mounting Holes: Accept 1/4in (M6) ScrewStud Material: Tinned CopperTerminal Stud Size: 1/2in (M12)Function: Switches isolated battery banks to all loads or combines battery banks to all loads, make before break contacts design allows switching between battery banks without power interruption.Application: Ideal for Marine or RVPackage List：1 x Battery Disconnect Switch4 x Set Screw

• PREMIUM MATERIAL CONSTRUCTION: Built from high-quality ABS and tinned copper, this battery disconnect switch ensures excellent oxidation prevention, outstanding strength, and long-term durability. Ideal for harsh environments like marine and automotive applications.
• 4-POSITION HEAVY-DUTY SWITCH: Designed with four selectable modes (OFF–1–2–1+2), this power selector switch allows flexible control over dual battery systems. The robust construction ensures it stays securely in place without loosening over time.
• SUPERIOR ELECTRICAL PERFORMANCE: With IP66 water prevention rating and ignition protection, this battery kiII switch offers outstanding conductivity and reliable performance. It’s ideal for both marine and vehicle use, handling demanding power distribution tasks with ease.
• MAKE BEFORE BREAK FUNCTIONALITY: The smart contactss design enables seamless transition between battery banks without cutting off power. It supports up to 500A continuous current, maintaining consistent energy flow during battery selection.
• EASY AND SECURE INSTALLATION: Featuring 1/4in (M6) mounting hole compatibility and 1/2in (M12) terminal studs, this battery isolator switch is simple to install and provides a firm, secure connection. Saves time and ensures effortless integration into your power system.