Heavy-Duty 48V DC Inline Circuit Breaker with Manual Reset

The Yiqi CB-02 Heavy-Duty 48V DC Inline Circuit Breaker with Manual Reset is a core protection device for low-voltage, high-load DC systems. Compared to traditional fuses that require frequent replacement, this product automatically trips and cuts off power in case of overload or short circuit. After troubleshooting, it can be manually reset to restore power, significantly reducing equipment maintenance time and operating costs. It is reusable and offers higher cost-effectiveness.

The product adopts an integrated inline wiring structure, making installation simple, wiring neat, and highly compatible, allowing for quick adaptation to various existing DC power supply systems. Manufactured in China under stringent quality control standards, these products can withstand harsh conditions such as vibration, outdoor environments, and humidity, maintaining stable performance under long-term high-load operation. Leveraging its mature production and service capabilities, Yiqi, as a premium supplier, provides one-stop DC circuit protection solutions to customers in the global automotive, marine, and industrial sectors.

Product Specification

Core Product Advantages

1. Rapid Overcurrent Protection for Reliable Safety

The Heavy-Duty 48V DC Inline Circuit Breaker with Manual Reset features a high-sensitivity thermistor tripping structure. In the event of overload or short circuit, it can rapidly cut off power in milliseconds, isolating fault current and effectively protecting electrical equipment, batteries, and wiring harnesses from burnout. It provides zero-delay safety protection for high-load DC systems.

2. Manual Reset for Significantly Reduced Maintenance Costs

Abandoning the drawbacks of traditional single-use fuses, this product adopts a purely manual reset structure. After troubleshooting a circuit fault, power can be restored directly by manual reset, eliminating the need for frequent parts replacement. This effectively reduces equipment downtime and subsequent maintenance costs, making it suitable for long-term continuous operation.

3. High-Strength Body, Excellent Environmental Adaptability

The zinc alloy + PC composite body boasts superior shock resistance, impact resistance, and aging resistance. Its enclosed structure adapts to harsh environments such as outdoor, marine, and vehicle environments with high vibration, humidity, and dust levels. Its slim and compact design saves installation space and is compatible with various mobile and industrial electrical equipment.

4. Integrated Wiring Installation, Wide Versatility

The exclusive inline integrated installation design simplifies the wiring process, ensuring neat and standardized cabling and avoiding safety hazards caused by messy wiring. It supports a wide voltage range of 12-48V and multiple current ratings from 30-300A, making it compatible with most vehicle, marine, and industrial low-voltage DC power supply systems on the market.

Real-World Application Case

1. North American RV Energy Storage System Retrofit Project

A North American RV conversion company purchased a batch of Yiqi Heavy-Duty 48V DC Inline Circuit Breaker with Manual Reset for the protection of the RV's auxiliary battery and solar energy storage circuits. During outdoor driving and camping, RVs experience large load fluctuations, making traditional fuses prone to frequent blowouts and cumbersome replacements. After replacing this product, the equipment can automatically trip in case of circuit overload or short circuit. Users can restore power by manually resetting it on-site, significantly reducing the difficulty of outdoor maintenance. One year after the project was implemented, the failure rate of the RV's DC electrical system decreased by 85%, and after-sales maintenance costs were significantly reduced.

2. Southeast Asia Marine and Yacht Electrical Protection Project

A marine engineering company in Southeast Asia applied the Yiqi 80A 48V DC inline circuit breaker to the power distribution circuits of yacht lighting, water pumps, and navigation equipment. The marine environment is consistently humid and subject to frequent vibrations, making ordinary protective equipment prone to aging and failure. Relying on its high-strength composite hull, this product can resist salt spray corrosion and operational vibration, ensuring stable performance and completely solving the problem of frequent failures in yacht electrical equipment, guaranteeing continuous safety for navigation and daily life.

FAQ

Q1: Is this Heavy-Duty 48V DC Inline Circuit Breaker with Manual Reset compatible with 12V and 24V DC systems?

A1: Yes. The Yiqi CB-02 circuit breaker supports a full range of DC voltages from 12-48V, perfectly compatible with 12V vehicle systems, 24V marine systems, and 48V energy storage systems. It is suitable for the vast majority of low-voltage DC electrical equipment on the market, offering exceptional versatility.

Q2: Why does the product use a manual reset design instead of an automatic reset design?

A2: Prioritizing equipment and electrical safety. If a circuit has a persistent short circuit or overload fault, repeated energizing of an automatic reset circuit breaker can easily cause secondary damage to the equipment, or even lead to a safety accident. Yiqi's manual reset design requires users to thoroughly investigate and eliminate the fault before restoring power, avoiding safety hazards at the source and complying with the safety operation standards for vehicle, marine, and industrial DC systems.

Brand and Factory Strength

Yiqi focuses on the R&D, production, and sales of DC electrical protection equipment. Equipped with a standardized production factory in Zhejiang, it boasts complete production lines, precision testing equipment, and a comprehensive quality inspection system. All products pass industrial standard testing, ensuring stable and reliable quality.

With a long history of deep cultivation in the global market, the brand has established in-depth cooperation with global electrical distributors, wholesalers, and engineering procurement companies. It can provide customers with high-quality DC circuit breaker products and customized electrical protection solutions, and supports services such as bulk purchase, long-term exclusive supply, and project docking. It is committed to becoming a trustworthy partner brand in the global DC electrical protection field.

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