Image Source: unsplashYou want your home to be safe and your electricity to work. A circuit breaker keeps your house safe by stopping dangerous electrical problems. It does this before anything bad happens. Breakers trip for a few reasons. This can happen if you use too many devices at once. It can
Using a 30 amp circuit breaker in place of a 20 amp circuit breaker creates a real danger in your home. You lose protection because the circuit breaker will not trip when the wiring gets overloaded. This can lead to fire, wire overheating, and even code violations. Many people think a working outlet
Image Source: pexelsAre you thinking your circuit breaker could be bad? Look for these signs:Cracks or broken spots on the breakerParts that look melted or too hotIt trips a lotYou hear buzzing or crackling noisesChecking these things helps keep your home safe. Do not try to fix electrical problems
You can check a circuit breaker with a multimeter. You can also do a manual reset. Look for any damage you can see. Always be careful when you work with your circuit breaker panel. It is important to stay safe. You should know the types of circuit breakers in your house.Single-Pole Breakers protect
Image Source: unsplashImagine waking up to the smell of smoke in your home. Every year, electrical faults spark about 51,000 house fires across the country. These fires cause hundreds of deaths and thousands of injuries. You rely on your circuit breaker to stop dangerous currents before they turn wi
High-Performance MCCB Solutions for Global Applications: Introducing the M3, M6, DC, and HU SeriesAs global industries demand higher standards for electrical safety, reliability, and customization, Molded Case Circuit Breakers (MCCBs) have become essential in modern power distribution systems. Our a
The ACB Air Circuit Breaker is a crucial component in modern electrical systems, especially in industrial power distribution. Its role in safeguarding electrical circuits from overloads and short circuits is indispensable. This article delves into the working principles, functions, and industrial ap
In the realm of industrial power distribution, the choice of circuit breakers plays a pivotal role in ensuring safety, reliability, and efficiency. Two of the most commonly used types of circuit breakers are the Air Circuit Breaker (ACB) and the Molded Case Circuit Breaker (MCCB). Each of these devi
In the modern landscape of commercial buildings, ensuring the safety and reliability of electrical systems is paramount. The integration of advanced technologies such as Air circuit breaker (ACB) systems has become increasingly essential. These systems are designed to protect electrical circuits fro
In the realm of electrical management within buildings, the choice of circuit breakers plays a pivotal role in ensuring safety, reliability, and efficiency. Among the various types of circuit breakers available, the Air Circuit Breaker (ACB) has gained significant attention due to its advanced featu
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
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NLL7-63 1P DC White
CHNAILE
Product Overview
Safeguard your direct current systems with the CHNAILE NLL7-63 series 1-Pole Plug-in DC Miniature Circuit Breaker (MCB). Specifically optimized for DC applications, this breaker operates flawlessly up to DC 250V with a 63A rating. Extinguishing DC electrical arcs is notoriously difficult, but our advanced internal arc-chute technology ensures safe and immediate interruption of fault currents. The aesthetic white housing seamlessly matches modern distribution boards, while the innovative "Plug-in" mounting architecture allows electrical contractors to perform lightning-fast installations and module swaps.
1. Comprehensive Protection Functions
Overload & Short Circuit Protection: Provides precise and immediate disconnection to protect expensive solar panels, inverters, and battery banks from catastrophic overcurrents.
Fault Current Quick Break: Features advanced arc-quenching mechanisms designed specifically for direct current, safely breaking the circuit in milliseconds to prevent electrical fires.
2. Premium Material & Robust Structure
High-Quality Flame Retardant Shell: Constructed from premium V0-grade, fire-resistant white materials. It offers exceptional thermal stability and prevents combustion even under extreme electrical stress.
High Conductivity Copper Parts: Internal contacts are crafted from high-purity copper, ensuring maximum conductivity, lower temperature rise, and reduced energy loss.
Compact Design, Easy Installation: The modular plug-in base design eliminates tedious terminal rewiring during maintenance, allowing operators to swap aging units safely and instantly.
Stable Mechanical Life: Rugged internal mechanisms guarantee tens of thousands of reliable mechanical and electrical operations.

3. Superior Performance Advantages
High Breaking Capacity: A robust 10000A (10kA) rating confidently handles severe DC fault currents, securing the safety of the entire downstream electrical grid.
Fast Tripping Speed: Highly responsive bi-metal and electromagnetic trip units accurately detect faults and trip instantly (Curve C characteristic).
Clear Visual Safety: Equipped with an intuitive mechanical status window (Green for OFF/Safe, Red for ON/Live) for secure visual verification by maintenance personnel.
4. Why Choose CHNAILE Factory
Direct Manufacturer: Procure directly from the source. We offer highly competitive factory-direct pricing to maximize your project's profit margins.
Strict Quality Control: Every circuit breaker undergoes 100% rigorous automated testing before dispatch, strictly complying with the IEC60898-1 international standard.
Global Supply & OEM Support: We support bulk wholesale, rapid delivery, and comprehensive OEM/ODM customization services for your specific branding needs.
Target Applications
Solar Photovoltaic (PV) String Combiner Boxes
Telecommunication Base Station Power Supplies
Battery Energy Storage Systems (BESS)
Direct Current Control Circuits and Automation Panels
