Nova DAB7-63 10kA 1P 2P 3P 4P Miniature Circuit Breaker (MCB)
The Dab7-63 miniature DC circuit breakers provide formidable protection against overload and short circuits for lines operating at DC voltages up to 250V and rated currents up to 63A. These breakers are also perfect for occasional line switching, offering both versatility and reliability.
Our DC MCB circuit breakers are engineered for superior performance in communication systems, photovoltaic (PV) installations, and other critical DC system applications, ensuring unparalleled safety and dependability.
>>Products meet:
IEC 60948.2, IEC 60947-2 standards, guaranteeing exceptional safety and performance.
Compliant with EU RoHS environmental standards, our DC circuit breakers have also obtained CCC and other crucial certifications.
>>Application
The Dab7-63/1P DC circuit breaker is meticulously designed for optimum overload and short circuit protection in DC electrical circuits and equipment, supporting rated DC voltages up to 250V and currents up to 63A.
Crucial for solar power generation systems, this DC circuit breaker operates seamlessly at voltages up to 250V DC. It efficiently interrupts fault currents in DC power distribution systems, protecting PV modules from reverse currents and shielding against AC feedback currents from inverter failures, thereby ensuring the reliable operation of solar photovoltaic systems.
>>Model and Meaning
Dab7-63/1P Miniature DC Circuit Breaker Specification Parameters
DC Circuit Breaker DAB7-63/1P 1A DC250V
DC Circuit Breaker DAB7-63/1P 2A DC250V
DC Circuit Breaker DAB7-63/1P 3A DC250V
DC Circuit Breaker DAB7-63/1P 4A DC250V
DC Circuit Breaker DAB7-63/1P 6A DC250V
DC Circuit Breaker DAB7-63/1P 10A DC250V
DC Circuit Breaker DAB7-63/1P 16A DC250V
DC Circuit Breaker DAB7-63/1P 20A DC250V
DC Circuit Breaker DAB7-63/1P 25A DC250V
DC Circuit Breaker DAB7-63/1P 32A DC250V
DC Circuit Breaker DAB7-63/1P 40A DC250V
DC Circuit Breaker DAB7-63/1P 50A DC250V
DC Circuit Breaker DAB7-63/1P 63A DC250V
>>Dab7-63/1P DC Circuit Breaker Working Environment and Installation Conditions
Ambient temperature range: -35ºC to +70ºC
Maximum air relative humidity: ≤95%
Pollution level: Level 2
>>Main Parameters and Technical Performance of Miniature DC Circuit Breaker
1. Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
2. Number of Poles and Corresponding Voltage: This versatile Nova MCB Breaker offers multiple configurations to suit your needs: 1P/DC250V, 2P/DC500V, 3P/DC750V, and 4P/DC1000V.
3. Rated Short Circuit Capacity: Designed to handle high-intensity scenarios, it boasts a robust short circuit capacity of 6000A.
4. Exceptional Mechanical and Electrical Life: Engineered for excellence, this breaker guarantees superior mechanical and electrical longevity.
With an impressive mechanical life span of no less than 20,000 cycles, this product ensures unmatched durability and reliability.
Boasting an electrical life of at least 8,000 cycles, this circuit breaker offers steadfast performance and long-term dependability.
>> DC Circuit Breaker Connection Mode: Discover the optimal connection setups for peak performance.
Wiring Diagram Description: Comprehensive wiring guidelines for effective installation:
1. Positive power, negative power: Connect as follows for optimal efficiency.
2. L+ load positive, L- load negative: Ensure proper load connections for reliable operation.
3. It is strictly prohibited to connect the positive and negative poles of the power: Strict adherence to this guideline is crucial for safety.
4. Rated Voltage: Ensure you select the appropriate rated voltage for your application.
2P: DC500V;
3P: DC750V;
4P: DC1000V
>> Dab7-63 Small DC Circuit Breaker Product Features: This state-of-the-art breaker offers a range of compelling features.
1. Exceptional breaking capacity, ensuring superior protection: Delivers unmatched safety and reliability.
2. Dual wiring capability for conductor and bus bar, enhancing versatility: Adaptable to various wiring requirements.
3. Rapid closure mechanism, paired with a long operational life: Combines swift operation with enduring performance.
4. Easy installation and removal, simplifying maintenance: User-friendly design for hassle-free upkeep.
5. Contact on/off indication for improved safety monitoring: Enhances visibility and operational safety.
6. Eco-friendly design focused on sustainability and energy efficiency: Crafted with the environment in mind, promoting sustainable use.
Audited Supplier 
){kind=link}