1 6

300 Amp Circuit Breaker with Manual Reset, Waterproof DC 12V-48V Breaker for Heavy-Duty Winch, Inverter, Truck, Boat, 300A 12V Circuit Breaker Battery Disconnect Switch - style: 300A

300 Amp Circuit Breaker with Manual Reset, Waterproof DC 12V-48V Breaker for Heavy-Duty Winch, Inverter, Truck, Boat, 300A 12V Circuit Breaker Battery Disconnect Switch - style: 300A

$37.83 USD
$37.83 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • [Extreme Load Handling]: Built for the most demanding applications, this 300 amp circuit breaker is a powerhouse dc breaker. It provides industrial-strength dc circuit breaker protection for massive power draws
  • [Industrial Marine Grade]: Our most robust marine circuit breaker. Engineered to survive extreme conditions, this 12v breaker is the standard for yacht main power and heavy-duty marine electronics
  • [Maximum Compatibility]: Ideal for power inverters and heavy recovery winches. This 12 volt circuit breaker acts as a heavy-duty 12v circuit breaker, replacing large, expensive fuses
  • ​Bullet 4 [Secure High-Amp Mount]: Features reinforced terminals for thick gauge battery cables. This circuit breaker ensures minimal voltage drop and maximum safety for extreme automotive and solar power systems
  • [Ultimate Kill Switch]: The high-visibility reset lever serves as an emergency shut-off. This 300A dc breaker is a cost-effective, reusable safety device for any high-current circuit breaker requirement

Overview

  • Brand: RVMARINEPAT
  • Current Rating: 300 A
  • Circuit Breaker Type: Standard
  • Mounting Type: Wall Mount
  • Number Of Poles: 2

Low stock: 10 left

View full details

Reviews

  • ⭐⭐⭐⭐⭐

    Michael Turner — Columbus, Ohio

    MROVanta made it easier to find several maintenance supplies in one place. The product information helped me compare the available options, and everything I ordered was useful for routine work around our facility.

  • ⭐⭐⭐⭐⭐

    Rachel Morgan — Phoenix, Arizona

    I was looking for practical supplies for our workshop and found the selection easy to browse. The categories were well organized, and I could quickly locate tools, fasteners, and other items needed for regular maintenance.

  • ⭐⭐⭐⭐⭐

    David Collins — Charlotte, North Carolina

    The products I selected were suitable for the maintenance tasks we had planned. I appreciated being able to review the specifications before ordering, especially when comparing sizes and compatibility for different applications.

  • ⭐⭐⭐⭐⭐

    Amanda Brooks — Denver, Colorado

    I ordered a mix of facility and equipment supplies for our work area. The shopping process was straightforward, and the selection covered several everyday maintenance needs without requiring visits to multiple stores.

New Arrivals

View all

Featured Collections

1 4

FAQ

How can I confirm that a product is suitable for my application?


Review the product description, dimensions, materials, ratings, connection types, and compatibility information before ordering. Industrial requirements vary, so consult the equipment manufacturer or a qualified professional if you are uncertain.

Do you provide installation or technical advice?


We can help clarify information shown on a product page, but we do not provide engineering, installation, or workplace-safety advice. Products should be selected, installed, and operated by appropriately qualified personnel where required.

Can I change or cancel my order after placing it?


Contact us as soon as possible at ruleindgalein@gmail.com. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once an order has entered processing or shipment.

When will my order be shipped?


Processing and delivery estimates may vary depending on the product, destination, inventory availability, and carrier. Please review the shipping information provided at checkout and our Shipping & Delivery Policy for additional details.

How can I track my order?


When tracking becomes available, it will be sent to the email address used for your order. Tracking activity may take some time to appear after the carrier receives the shipment.

Why did my order arrive in more than one package?


Items from the same order may be fulfilled or shipped separately. As a result, packages can arrive at different times and may have separate tracking numbers. You will not be charged additional shipping solely because an order is divided into multiple shipments.

What should I do if an item arrives damaged, defective, or incorrect?


Contact us promptly at ruleindgalein@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep all packaging until we provide further instructions.

Can I return an item if it is not suitable?


Eligible items may be returned in accordance with our Return & Refund Policy. Return conditions, exclusions, time limits, and any applicable costs depend on the item and circumstances. Please contact us before sending anything back.

Do you offer bulk quantities or business purchasing?


Availability of larger quantities varies by product. Email us with the product link, desired quantity, required specifications, and delivery location, and we will let you know whether suitable options are available.

How can I contact MROVanta?


Email us at ruleindgalein@gmail.com or call +1 (936) 260-5549. Include your order number when contacting us about an existing purchase so we can assist you more efficiently.

Blog posts

View all
  • The Hidden Cost of a Disorganized Tool Crib: 5 Ways to Improve Industrial Tool Management

    The Hidden Cost of a Disorganized Tool Crib: 5 ...

    Discover five practical tool crib management strategies to reduce lost tools, improve inventory accuracy, and streamline industrial maintenance operations. Learn how 5S organization, tool tracking, calibration controls, and smarter MRO...

    The Hidden Cost of a Disorganized Tool Crib: 5 ...

    Discover five practical tool crib management strategies to reduce lost tools, improve inventory accuracy, and streamline industrial maintenance operations. Learn how 5S organization, tool tracking, calibration controls, and smarter MRO...

  • The Humidity Trap: How to Prevent Rust on Exposed Metal Pipes

    The Humidity Trap: How to Prevent Rust on Expos...

    Learn how to prevent rust on exposed metal pipes in humid industrial facilities with better inspections, moisture control, surface preparation, and protective coatings.

    The Humidity Trap: How to Prevent Rust on Expos...

    Learn how to prevent rust on exposed metal pipes in humid industrial facilities with better inspections, moisture control, surface preparation, and protective coatings.

  • Stop Replacing Bearings Too Soon: A Practical Guide to Industrial Lubrication Interval Management

    Stop Replacing Bearings Too Soon: A Practical G...

    Learn how to establish effective industrial bearing lubrication intervals, select the right grease, prevent premature bearing failure, and improve equipment reliability. Discover practical maintenance strategies for reducing downtime, controlling MRO...

    Stop Replacing Bearings Too Soon: A Practical G...

    Learn how to establish effective industrial bearing lubrication intervals, select the right grease, prevent premature bearing failure, and improve equipment reliability. Discover practical maintenance strategies for reducing downtime, controlling MRO...

1 3
View all