For Use With Cars, Boats, Atvs, And Marine Trolling Motors, Consider The, 300A. Application:Suitable for car audio/video system, Boat, trucks, buses, RV's, ATV Winches and marine and DC sound amplifier system overload protection.Features:Easy to operate with manual reset arm.good conductivity, high temperature resistance.Mount on Panel or FirewallStops Power Surges from Damaging Your AmpsSplash and dust proof Water proofNo need to keep replacing fuses anymore, simply reset breaker and you are ready to go.Protects Your Trolling Motor From Electrical DamageUnique Push Button Reset can also be used as a Kill SwitchSpecification:1. Size: 3.42in .5. Material: Plastic and Metal6. Ampere range:300A7. modes: Close/OffPackage included:1PCx 300A Waterproof Circuit Breaker Product Features Specification: Waterproof breaker switch compatible with all 12V/48V DC Systems, 30A 40A 50A 60A 70A 80A 100A 120A 150A 200A 250A 300A For Choose. Function: Always protect the safety of automotive electronics, Prevent car currents from being too high and damage automotive electronic equipment. Wide Application: Typically used in solar system, battery charges, inverter, Car audio video system, boat, RV and DC sound amplifier system. save money: Two modes, Current overload disconnection and manual disconnection.After the circuit is repaired, the switch turns ON and the fuse block can be used again.No need to replace the fuse. Easy to use and durable: Good Conductivity, Temperature And Pressure Resistance,Splash and dust proof Water proof.can be mount on panel or firewall. Fit type: Universal Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!