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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.
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) |
Dimensions(unit:mm)
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
