12V-48V Waterproof DC Auto Reset Circuit Breaker

The Yiqi 12V-48V Waterproof DC Auto Reset Circuit Breaker effectively addresses the pain points associated with traditional DC protection devices, such as the need for frequent fuse replacements and manual resets. Covering the mainstream 12–48V low-voltage DC range, the product features a fully sealed, waterproof design capable of withstanding harsh operating conditions—including outdoor exposure, humidity, and vibration—making it suitable for a wide variety of demanding DC power applications.

Manufactured in Zhejiang, China, Yiqi operates a mature production and testing system for DC circuit protection products. Backed by consistent quality and flexible supply capabilities, the brand has long served global DC electrical wholesalers, importers, and procurement partners. As a reliable professional factory, we strictly adhere to international production standards, providing stable and durable overcurrent protection for a wide range of DC electrical equipment.

Core Product Specifications

Key Product Advantages

1. Automatic Reset and Rapid Overcurrent Protection

Equipped with a highly sensitive automatic reset mechanism, the 12V-48V Waterproof DC Auto Reset Circuit Breaker cuts power within milliseconds during circuit overloads or overcurrent events, preventing equipment burnout and short circuits. Once current and voltage levels return to normal, power is automatically restored without manual intervention; this effectively reduces maintenance frequency and downtime, ensuring the continuous, stable operation of the DC system.

2. Waterproof and Shock-Resistant: Suitable for Harsh Conditions

The unit features an integrated sealed design utilizing high-strength zinc alloy and PC materials. It offers excellent waterproof, dustproof, and shock-resistant capabilities, effectively shielding against rain, moisture, dust, and mechanical vibration. It ensures stable, long-term operation in high-humidity outdoor settings, marine environments, and conditions involving vehicle vibration, overcoming the environmental limitations of standard circuit breakers.

3. Compact Size and Flexible Installation

With a compact structure measuring just 84 x 69 x 43 mm, the product can be flexibly installed in tight spaces such as electrical compartments, vehicle power distribution boxes, and marine electrical equipment housings. It is equipped with robust terminals that ensure secure, vibration-proof connections and stable power transmission, meeting the installation requirements of various compact devices.

4. Customizable with Stable, Reliable Supply

As a professional DC electrical component supplier, Yiqi offers one-stop customization services, including parameter adjustments, custom branding/silkscreen printing, and bespoke packaging. We support sample testing, small-batch trial orders, and large-scale bulk procurement, ensuring a stable, long-term supply for global customer projects and wholesale operations.

Real-World Application Cases

1. Marine Power Distribution Protection for Yachts

A European marine equipment procurement company utilized the Yiqi 12V-48V Waterproof DC Auto Reset Circuit Breaker in the power distribution systems of medium-sized yachts. Yachts feature extensive electrical equipment and operate in humid marine environments subject to hull vibration; traditional fuses were prone to moisture damage and required frequent manual replacement, resulting in poor system stability. After switching to this product, the system could rapidly cut power during instantaneous overloads caused by solar charging or appliance switching, and automatically reset once the fault was cleared. Following 12 months of real-world marine testing, the circuit failure rate of the yacht's power system dropped by 95%, with no instances of moisture damage or malfunction, significantly enhancing the safety and continuity of the marine power system.

2. Off-Grid Energy Storage System for RVs

A US-based RV modification company adopted Yiqi CB-04 circuit breakers in large quantities for their off-grid RV power systems. RVs operate in complex outdoor environments, and off-grid systems—comprising batteries and inverters—are prone to instantaneous overcurrent during startup and load switching. Leveraging rapid trip and automatic reset capabilities, this product effectively protects RV batteries, inverters, and onboard appliances; its waterproof and dustproof design withstands outdoor elements and the vibrations associated with vehicle travel. Currently compatible with over 800 modified RVs, the product boasts stable operation and a negligible post-sales defect rate, earning recognition through long-term bulk procurement by customers.

FAQ

Q1: What applications is the Yiqi 12V-48V Waterproof DC Auto Reset Circuit Breaker suitable for?

This product is compatible with all 12-48V low-voltage DC power systems. It is widely used in automotive electrical systems, RV off-grid energy storage, marine electronics, solar battery protection circuits, off-road vehicle power distribution, and outdoor DC equipment. Compared to standard household circuit breakers, its waterproof and shock-resistant features make it better suited for the harsh operating conditions found in outdoor and mobile applications.

Q2: Does the product support parameter customization and OEM services?

Yes. Yiqi offers comprehensive customization and OEM services. We can fine-tune product parameters to meet specific engineering requirements and support custom branding (logos), personalized packaging, and specialized parameter calibration. We also provide services such as sample testing, flexible batch ordering, and long-term exclusive supply arrangements to meet the diverse procurement needs of wholesalers, contractors, and brand clients.

Q3: What are the advantages of the auto-reset model compared to manual-reset circuit breakers?

Yiqi’s auto-reset circuit breakers eliminate the need for manual intervention; power is automatically restored once the overload fault is cleared and the current returns to normal levels. They are particularly ideal for unattended equipment—such as outdoor energy storage and marine power systems—significantly reducing maintenance labor costs, preventing equipment downtime caused by delayed resets, and enhancing the intelligent operation of DC power systems.

Brand and Service Advantages

With years of experience in the R&D, manufacturing, and sales of DC circuit protection devices, Yiqi employs mature production processes, rigorous quality control systems, and extensive industry expertise; our entire product line undergoes comprehensive performance testing. Upholding a philosophy of "quality first and customer-centricity," we provide end-to-end service—including pre-sales parameter matching, order tracking, and post-sales technical support—catering to everything from small-scale purchases to large-scale custom engineering orders, while delivering stable, reliable circuit protection solutions for a wide range of DC electrical systems.

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