


Introducing the Nova DAB7-63 10kA 1P 2P 3P 4P Miniature Circuit Breaker (MCB) - the pinnacle of protection and efficiency, designed to elevate your electrical safety to unprecedented heights. This state-of-the-art device guarantees superior performance, seamlessly blending cutting-edge technology with unmatched reliability to ensure your systems are safeguarded with the utmost precision.
The DAB7-63 miniature DC circuit breakers offer unrivaled overload and short circuit protection for lines operating with DC voltages up to 250V and rated currents up to 63A. Specifically engineered for infrequent switching applications, these robust breakers provide exceptional versatility and dependability, ensuring your systems remain consistently safe, operational, and secure, no matter the challenge.
Our meticulously engineered DC MCB circuit breakers are designed to cater to communication systems, photovoltaic (PV) installations, and a myriad of other DC system applications. Prioritizing safety and reliability, they provide comprehensive peace of mind and unwavering protection across all settings, ensuring your operations achieve optimal performance at all times.
>>Products meet:
IEC 60948.2 and IEC 60947-2 standards, delivering top-tier safety and outstanding performance for all your electrical needs. These prestigious certifications underscore our commitment to providing only the highest quality solutions, ensuring superior protection and instilling confidence in every application.
Fully compliant with EU RoHS environmental requirements, our DC circuit breakers have successfully passed CCC and other esteemed certifications. They stand as a reliable and eco-conscientious choice for applications demanding adherence to rigorous environmental standards, embodying our dedication to sustainability and excellence.
>>Application
The Dab7-63/1P DC circuit breaker is expertly crafted for delivering comprehensive overload and short circuit protection within DC electrical circuits and equipment. Supporting rated DC voltages up to 250V and currents up to 63A, it provides failsafe protection with precision and reliability, making it an essential component in your electrical safety arsenal.
Indispensable for solar power generation systems, this DC circuit breaker operates with stellar efficiency at voltages up to 250V DC. It swiftly interrupts fault currents within DC power distribution systems, safeguarding PV modules from reverse current and shielding against AC feedback current due to inverter failures, thus ensuring the unwavering reliability and safety of your solar photovoltaic systems.
>>Model and Meaning
Detailed Specifications for Dab7-63/1P Miniature DC Circuit Breaker
DC Circuit Breaker DAB7-63/1P 1A DC250V - Small yet mighty, ingeniously crafted for compact spaces while delivering formidable protection to ensure your systems' safety.
DC Circuit Breaker DAB7-63/1P 2A DC250V - Offering robust protection with precision engineering and unwavering reliability, this breaker is a testament to our commitment to excellence.
DC Circuit Breaker DAB7-63/1P 3A DC250V - A versatile solution crafted for a wide range of applications, ensuring top-tier performance and unmatched reliability in every scenario.
DC Circuit Breaker DAB7-63/1P 4A DC250V - Harmonizing power safety with exceptional efficiency, this device is engineered for delivering superior results in dynamic environments.
DC Circuit Breaker DAB7-63/1P 6A DC250V - Meticulously engineered for superior performance, providing steadfast safety and protection across varied applications.
DC Circuit Breaker DAB7-63/1P 10A DC250V - Built to offer unwavering protection for critical systems, this breaker is designed to deliver ultimate reliability when it matters the most.
DC Circuit Breaker DAB7-63/1P 16A DC250V - Powering your systems with unwavering dependability and exceptional protection, this device is crafted to meet the highest safety standards.
DC Circuit Breaker DAB7-63/1P 20A DC250V - Engineered with precision for high-demand applications, ensuring stable and safe operations that exceed expectations.
DC Circuit Breaker DAB7-63/1P 25A DC250V - Ensuring safety in dynamic and challenging environments, this breaker delivers outstanding protection, performance, and peace of mind.
DC Circuit Breaker DAB7-63/1P 32A DC250V - The definitive choice for managing medium to high loads, offering superior safety, reliability, and unparalleled performance.
DC Circuit Breaker DAB7-63/1P 40A DC250V - Engineered for high-capacity protection, this breaker is designed for large-scale operations, ensuring optimal safety and unmatched durability.
DC Circuit Breaker DAB7-63/1P 50A DC250V - Engineered for substantial power demands, this breaker provides robust and unwavering protection, ensuring your electrical systems operate without a hitch.
DC Circuit Breaker DAB7-63/1P 63A DC250V - The epitome of protection for the most rigorous applications, guaranteeing unparalleled safety and optimal performance at all times.
>>Dab7-63/1P DC Circuit Breaker Working Environment and Installation Conditions
Ambient temperature range: -35ºC to +70ºC - Expertly designed to excel in the toughest climates, ensuring seamless functionality across extreme temperatures.
Maximum air relative humidity: ≤95% - Ensures consistent performance even in environments with high humidity, delivering reliability no matter the moisture level.
Pollution level: Level 2 - Masterfully engineered to operate efficiently in environments with moderate contamination, maintaining high performance.
>>Main Parameters and Technical Performance of Miniature DC Circuit Breaker
1. Rated Current (In): 1A to 63A - Meticulously crafted to meet a diverse range of application requirements, offering precise current handling.
2. Number of Poles and Corresponding Voltage: 1P/DC250V to 4P/DC1000V - Flexibly adaptable to a wide variety of voltage specifications, accommodating numerous electrical needs.
3. Rated Short Circuit Capacity: 6000A. Delivers formidable protection against electrical faults, significantly enhancing system safety and integrity.
4. Exceptional Mechanical and Electrical Life. Engineered for remarkable durability and top-tier performance, ensuring longevity.
Boasting a remarkable mechanical lifespan of 20,000 cycles or more, this breaker offers unmatched durability and consistent dependability.
With an electrical lifespan exceeding 8,000 cycles, this circuit breaker guarantees unwavering reliability throughout extended usage.
>> DC Circuit Breaker Connection Mode. Effortlessly integrates into diverse electrical setups, ensuring seamless connectivity.
Wiring Diagram Description: Offers detailed, comprehensive instructions for secure and precise installation.
1. Positive power, negative power. Ensures optimal performance through correct polarity alignment, essential for seamless operation.
2. L+ load positive, L- load negative. Assures efficient load distribution and system equilibrium, enhancing stability.
3. Strictly prohibited: connecting the positive and negative poles of the power. Essential safety protocols to avert potential hazards.
4. Rated Voltage: 1P: DC250V; Tailor-made voltage specifications for each pole, ensuring precise operational requirements are met.
2P: DC500V; Versatile solutions designed to meet varied usage scenarios, ensuring adaptability.
3P: DC750V; Facilitates operations at higher voltages, catering to demanding electrical tasks.
4P: DC1000V. Ideal for the most powerful and demanding electrical systems, offering comprehensive support.
>> Dab7-63 Small DC Circuit Breaker Product Features. Crafted for outstanding efficiency and reliability, delivering unparalleled performance:
1. Exceptional breaking capacity, a cornerstone of protection and reliability during critical events, ensuring safety.
2. Dual wiring capability for conductor and bus bar, enhancing versatility and user convenience, facilitating varied applications.
3. Rapid closure mechanism and prolonged operational lifespan, providing swift response and lasting performance under all conditions.
4. Easy installation and removal, streamlining maintenance processes and significantly reducing downtime.
5. Contact on/off indication enhances safety monitoring, allowing for quick and easy identification of circuit status.
6. Eco-friendly design, promoting sustainability and energy efficiency, aligning with modern environmental standards, and conserving resources.

