1P 50V 250A DC Miniature Circuit Breaker

The 1P 50V 250A DC Miniature Circuit Breaker, a core DC protection device for GreenWatt's factory, is specifically designed for DC 50V low-voltage environments and 250A high-current conditions. Breaking away from the limitations of traditional multi-pole circuit breakers with its bulky design, it adopts a single-pole design to accommodate the installation needs of miniaturized equipment. This product can be widely used in scenarios such as home energy storage battery packs, portable energy storage devices, and small DC power distribution systems. Its core function is to quickly disconnect the circuit when overloads or short circuits occur, preventing equipment damage and safety hazards, and ensuring the stable operation of the DC system.

Core Product Structure and Design Highlights

1.Overall Structural Design

The GreenWatt 1P 50V 250A DC Miniature Circuit Breaker features a compact single-pole structure. Its small overall size allows for direct mounting on standard 35mm DIN rails, saving internal installation space and making it suitable for compact installation scenarios such as small energy storage cabinets and portable devices. The product casing uses an integrated encapsulation design, providing excellent sealing and effectively preventing dust and accidental contact, thus enhancing safety.

To address the heat dissipation issue under high current loads in a single-pole configuration, we innovatively employ a design where two poles are connected in parallel to form a single pole. This effectively reduces the product's operating temperature, ensuring that the GreenWatt 1P 50V 250A DC Miniature Circuit Breaker maintains stable performance even when carrying a 250A current for extended periods, preventing equipment failure due to overheating. This design not only simplifies the installation process but also extends the product's lifespan, making it more practical than similar products.

2.Core Component Materials

Housing Material: Made of V0-grade flame-retardant PA66 plastic, possessing excellent flame-retardant properties. This effectively prevents the spread of fire caused by circuit faults, meeting fire safety standards and ensuring the safety of equipment and personnel. This is one of the core safety guarantees of all GreenWatt electrical products.

Conductive Components: Made of 99.9% high-purity copper, offering excellent conductivity and low resistance. This effectively reduces energy loss and heat generation during current transmission, ensuring stable operation under 250A high current conditions and preventing overheating damage due to poor conductivity.

Tripping Components: Employs bimetallic elements and an electromagnetic tripping structure. The bimetallic element uses high-quality materials, exhibiting high thermal stability and consistency. It accurately senses circuit overload conditions, achieving delayed tripping. The electromagnetic tripping structure responds quickly to short-circuit faults, instantly cutting off the circuit for high protection efficiency.

Product Technical Advantages

1. High Current Bearing and Heat Dissipation Advantages

The GreenWatt 1P 50V 250A DC Miniature Circuit Breaker can stably carry a rated current of 250A. Through a two-pole parallel design and the use of high-purity copper conductive components, it effectively reduces product temperature rise, solving the heat dissipation problem of single-pole circuit breakers under high current loads. Even under long-term full-load operation, the product temperature can be controlled within a reasonable range, avoiding abnormal tripping or component damage due to overheating, thus improving the stability and reliability of product operation.

2. Precise Protection Performance Advantages

The product has precise overload and short-circuit protection functions. The overload tripping characteristic can achieve delayed tripping according to the circuit load, avoiding false tripping caused by instantaneous overload; the short-circuit tripping response is rapid, cutting off the circuit within milliseconds, effectively blocking the impact of short-circuit current on the equipment, protecting the DC system and downstream equipment from damage. At the same time, the product has excellent arc extinguishing performance, quickly extinguishing the arc generated during circuit faults, preventing arc burns to components or causing safety hazards.

3. Installation and Adaptation Advantages

This product adopts a standard DIN rail mounting method, making installation convenient and allowing for quick integration with other electrical components. It is suitable for the installation needs of various small DC devices. The unipolar design is compact and space-saving, making it particularly suitable for installation in compact environments such as small energy storage battery packs and portable energy storage devices. Furthermore, the product's wiring terminals feature a U-shaped tunnel design, facilitating wiring and providing maximum wiring capacity to meet actual usage requirements.

4. Environmental and Compliance Advantages

We strictly adhere to environmentally friendly production standards. All components of the GreenWatt 1P 50V 250A DC Miniature Circuit Breaker comply with RoHS 2.0 standards, are free of hazardous substances, and meet global environmental requirements. The product has obtained multiple international and domestic certifications, including CE, CB, TUV, and CCC, meeting the usage standards of different countries and regions and adapting to the procurement needs of low-voltage, high-current DC scenarios worldwide.