1 13

300A Marine-Grade Circuit Breaker | Manual Reset Switch for RV, Boat, Truck, Audio

300A Marine-Grade Circuit Breaker | Manual Reset Switch for RV, Boat, Truck, Audio

$56.39
$89.99 $56.39
Sale Sold out
Shipping calculated at checkout.

300A Manual Reset Waterproof Circuit Breaker (12V–48V DC)
Protect your vehicle, boat, or electrical system with this heavy-duty circuit breaker designed for high-amperage applications and harsh environments. No more blowing fuses — this smart, resettable breaker keeps your system safe and running smoothly.

Key Features:
✔️ Reliable Overcurrent Protection
Acts as both a circuit breaker and battery disconnect — prevents damage from electrical surges or overloads. Easily charge or maintain your battery without removing wires.

✔️ Manual Reset with Kill Switch Function
Push-button on/off switch lets you reset instantly. Also works as a quick shutoff in emergencies — no need for fuse replacements.

✔️ Durable, Waterproof Housing
Built with IP67-rated thermal plastic for marine and off-road use. Resists water, dust, vibration, and extreme temperatures.

✔️ Universal Application
Perfect for boats, marine systems, RVs, trailers, trucks, buses, ATVs, winches, and DC sound systems. Also ideal for battery chargers and inverters.

✔️ Certified & Safe
Meets SAE J1627, J1171, and UL1500 standards. Includes protective rubber caps and vibration-resistant locking nuts.

Specifications:

  • Circuit Rating: 300A

  • Voltage Range: 12V–48V DC

  • Interrupt Rating: 3000A @ 30V DC

  • Weatherproof Rating: IP67

  • Operating Temp: -32°C to 82°C

  • Storage Temp: -34°C to 149°C

  • Stud Size: M6 x 2

  • Material: UL-rated thermal plastic (94V0)

  • Color: Black

What’s Included:

  • 1 x 300A Manual Reset Circuit Breaker

  • 2 x Locking Nuts with Integrated Washers

View full details

Delivery info

U.S.A:

Free for all Orders: 2-5 Days Tracking Ground Express

Canada:

Free for all Orders: 5-7 Days

(With Tracking Number)

Return info

Return Policy

At Americans Warehouse, we strive to provide you with the
highest quality products and the best customer experience. We understand that,
on occasion, you may need to return an item. Hence, we have established the
following return policy to ensure your satisfaction.

Return Conditions:

You may initiate a return for an item(s) within 30 days of
receipt under the following conditions:

  1. Change of Mind: If you change your mind about your purchase, you are welcome to return the item within the stipulated 30-day period from the date of delivery.
  2. Defective Item: If you receive an item that is defective or not working as expected, we sincerely apologize for the inconvenience. You may request a return or exchange within 30 days of delivery.
  3. Lost in Transit: If your item is lost in transit and does not reach you, we understand the frustration this can cause. Please reach out to us to initiate a return.

Refund or Replacement:

Upon the successful return of the item under any of the above
circumstances, you are eligible to either receive a full refund or request a
free replacement.

NOTE: you must return the item in a timely
manner (10 days within receiving return postage) to receive a
full refund.

How to Initiate a Return:

To initiate a return, please contact our customer service team
at info@americanswarehouse.com.
We will guide you through the process and provide you with the necessary
details regarding the return shipment.

Your satisfaction is our priority, and we are committed to
ensuring a seamless return process. Thank you for your understanding and for
being a valued part of the Americans Warehouse community.

Shipped from the US with 100% Quality Guarantee

WE ARE A LOCAL BUSINESS

  • Support

    Available Mon-Fri 8am - 6pm

    EST

  • Easy Returns

    Free and Easy Returns (see our return policy here)

  • Free Shipping

    Enjoy Free Express Delivery on all orders until Christmas

  • 1 Year Warranty

    All Items are covered for 365 days on Technical damages