CNKA is a professional enterprise specializing in the research, development, and production of wholesale DC Mcb For Solar applications in the photovoltaic industry. Our product line includes dedicated photovoltaic circuit breakers, photovoltaic AC/DC combiner boxes, distribution cabinets, large-scale photovoltaic grid-connected cabinets, grid-connected boxes, and photovoltaic lightning protection systems. These products are extensively utilized in new energy grid-connected distribution systems. They are known for their easy installation, robust reliability, and comprehensive certifications, making them highly esteemed and trusted by customers worldwide.
CNKA DC MCB for solar suppliers in China is designed for DC circuits, with a rated voltage of 1000V and a maximum rated current of 63A, providing overload and short circuit protection. Additionally, this device is suitable for intermittent operation in low-frequency DC applications, such as communication and photovoltaic systems.
CNKA dc mcb for solar Parameter (Specification)
Product Model
NBL7-63
Pole
1P
2P
4P
Frame Current
63A
Rated Current
In
6,10,16,20,25,32,40,50,63A
Rated Working Voltage
Ue(DC)
300V
500/600/1000V
1000V
Rated Insulation Voltage
Ui
1200V
Rated Impulse Withstand Voltage
Uimp
6kV
Breaking Capacity
Icu
6KA
Tripping Characteristic
C
Tripping Type
Thermal Magnetic
Electrical Life
Actual
500 Cycles(63A Frame)
Standard
300 Cycles
Mechanical Life
Actual
10000 Cycles(63A Frame)
Standard
9700 Cycles
Overvoltage Category
I
Pollution Degree
3
Ingress Protection
IP40 Wiring Port IP20
Resistance To Humidity And Heat
Class 2
Terminal Capacity
2.5x35mm2
Fastening Torque Of Terminals
2.0℃3.5Nm
Ambient Temperature
-30℃~~+70℃
Storage Temperature
-40℃~+85℃
Installation Method
DIN
Standard
IEC60947-2
CNKA dc mcb for solar Feature
1 The enclosure is crafted from thermoplastic material, completely enclosing the connection ports, offering impact resistance and recyclability.
2 Featuring the traditional U-shaped tunnel terminal design, ensuring secure and reliable connections, maximizing safety.
3 The proprietary airflow system effectively lowers temperatures between adjacent circuit breakers, enhancing circuit safety.
4 The safety handle incorporates a classic, ergonomic design for simplicity, convenience, and dependable operation.
CNKA dc mcb for solar Details
1 Clear red and green indicator lights are visible.
2 The handle is reinforced for a secure grip.
3 PC flame-retardant materials enhance safety significantly.
4 Top cooling vents are designed to enhance heat dissipation efficiency.
CNKA dc mcb for solar Dimensions and wiring
CNKA dc mcb for solar Working conditions
1 The installation site should not exceed an altitude of 2000 meters above sea level.
2 The relative humidity at the installation site should not exceed 50% at a maximum temperature of 40°C. At lower temperatures, such as 20°C, the allowable relative humidity can reach up to 90%.
3 Precautions should be taken for occasional condensation resulting from temperature changes.
4 Ensure the installation site is sheltered from rain and snow.
5 Installation categories: The main circuit of the circuit breaker is categorized as III, while auxiliary and control circuits not connected to the main circuit are categorized as II.
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