CB-03 30A Manual Reset Circuit Breaker
CB-03 300A Manual Reset Circuit Breaker
CB-03 Waterproof Manual Reset Circuit Breaker Dimension
CB-03 Reusable and Controllable
CB-03 Manual Reset Circuit Breaker Details
CB-03 Manual Reset Circuit Breaker Application

Car 12V-48V 30A-300A Waterproof Manual Reset Circuit Breaker

Regular price$15.99
Shipping calculated at checkout.


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About this item

Specification - 30amp-300amp circuit breaker 12V; DC circuit breaker Applicable voltage: 12V - 48V DC; Waterproof; Ignition protected: S.A.E. J1625, J1171, UL1500.

Reusable - This 12V DC circuit breaker is designed with a push button and reset bar, which makes the in-line circuit breaker more than a fused circuit breaker, but can also be used as a kill switch. 

Function - This circuit breaker can protect your vehicles or boats from electrical damage, prevent excessive current and stop power surges from damaging amps.

Application - This DC circuit breaker is typically used in trucks, buses, RVs, caravans, winches, tractors, and ATVs. In addition, the automotive circuit breaker can also be used as a marine circuit breaker due to its waterproof function, for boats, yachts, etc.

What is included

1 x Circuit Breaker


Part NO CB-03
Type Reset Circuit Breaker
Housing Color  Black 
Current 30A-300A
Voltage 12V-48V(MAX)
Mounting Type  Surface Mount DC Breaker
Termination 1/4" Stainless Steel Studs
Size L x W x H: 2.9'' x 1.9'' x 1.9''
Operating Temperature -32℃(-25℉) - 82℃(180℉)



CB-03 Manual Controllable & Reusable Circuit Breaker

Manual Controllable & Reusable

 - This 30-300A circuit breaker is designed to have a manual button and a reset arm, which makes the 12 volt circuit breaker become a reusable inline fuse switch.

CB-03 Manual Controllable & Reusable Circuit Breaker

Wide Application

 - This 12V-48V  waterproof manual reset circuit breaker is capable of both automotive and marine use, suitable for car, automotive, RV, trolling motor, boat, yacht, etc.

Free Shipping

We will use Economy International express service operated by China Postal Express. And it’s for light-weight products that less than 2kg with delivery in 10-25 days.

Expedited Shipping

You can choose this way, and normally we will use FEDEX or DHL. the shipping Rate is depend on the total weight of products, and delivery date will be 3-7 days.


Refund arrival time: 1-2 working days
Refund path: return to the original path
Refund contact information: angel@chinadaier.com

Customer Reviews

Based on 1 review
Brett Waye

I purchased three of these items.
One broke much easier than it should have but that was no problem, all it took was one email to have it replaced.
That's what I call service.