CQB7PV-100 Series Photovoltaic Grid-Connected Dedicated Circuit Breaker
The CQB7PV-100 series photovoltaic grid-connected dedicated circuit breaker is designed by CHAC Electric for use in distributed photovoltaic power generation systems. It integrates an electric operating mechanism, intelligent controller, and miniature circuit breaker to provide comprehensive protection against overcurrent, short circuits, phase loss, undervoltage, and voltage loss in lines or electrical equipment. This MCB is essential for ensuring the safe and reliable operation of distributed photovoltaic power sources connected to the grid.
Ordering Specifications
When ordering a circuit breaker, please specify the following:
a) Product model, such as CQB7PV-100;
b) Number of poles of the circuit breaker, such as 1P+N, 2P, 3P+N, 4P;
c) Instantaneous tripping type, such as C;
d) Rated current of the circuit breaker, such as 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A;
e) Order quantity, such as 100 units.
Order:
CQB7PV-100 2P C/80A 100 pieces
Dimensions(unit:mm)
Main parameters and technical performance
| Technical parameter items | Parameter value |
| Rated current ln | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A |
| Number of poles | 1P+N, 2P, 3P+N, 4P |
| Operating temperature | The operating temperature is -40°C~+70°C; the average temperature within 24 hours should not exceed +35°C |
| Relative humidity | The relative humidity shall not exceed 50% when the maximum temperature is +40°C and shall not exceed 90% when the average minimum temperature in the wettest month does not exceed +20°C. |
| Protection level | IP20 |
| Circuit breaker sectionalizing capacity | Icn=lcs=6kA |
| Wiring method | 1P+N/2P single-phase 3P+N/4P three-phase four-wire |
| Rated operating voltage Un | 1P+N/2P230V AC/50Hz 3P+N/4P 400V AC/50Hz |
| Electrical life | >6000 times, cos=0.85~0.9 |
| Mechanical life | 10,000 times |
| Rated impulse voltage (Uimp) | >6KV |
| Dielectric strength | 2000V voltage 1min |
| Automatic closing time tc | <3s |
| Power-on delay te | 7s≤te≤8s(can be set according to customer requirements) |
Why Choose CHAC
With 30+ years of manufacturing experience, 1100+ employees, 100M+ poles
annual capacity and 90% automated production, CHAC provides stable production capacity and strict
quality control for global OEM/ODM customers. Our in-house manufacturing system supports long-term
cooperation for electrical brands, importers and distributors.
30+
YEARS EXPERIENCE
Specialized in low-voltage electrical manufacturing
1100+
EMPLOYEES
Professional team ensures stable quality and delivery
100M+
POLES ANNUAL CAPACITY
Large-scale production capacity to meet global demand
90%
AUTOMATED PRODUCTION
Advanced automation for high efficiency and consistency
Automated Assembly Line
Testing Laboratory
Injection & Stamping
Quality Inspection
Strict quality control system ensures every product meets global standards.
What Can We Customize?
We support customization across branding, packaging, product appearance,
electrical specifications, certification requirements and engineering development. Whether customers
need private label products, market-specific parameters or new product development, CHAC can provide
flexible solutions based on project requirements.
Logo & Branding
Custom logo printing, laser marking and nameplate solutions.
Packaging
Personalización
Customized color boxes, cartons, labels and manuals.
Electrical
Personalización
Current, voltage, breaking capacity, trip curve and other
special functions.
Product
Appearance
Housing color, handle color and appearance customization.
Certification
Support
Products comply with international standards and market
requirements.
Engineering
Development
Drawing evaluation, prototype testing and mass production.
