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Why DC Combiner Box Is Essential for PV Systems
If you're a solar system buyer, installer, or project manager, let's get straight to the point—you're here because you need a definitive answer: Does your solar system really need a DC combiner box? A
• Suitable for AC 50Hz circuits with rated voltage up to 280V.
• Type A/AC residual current circuit breaker, reliably trips for AC sinusoidal residual current and pulsating DC residual current.
• Provides personal electric shock protection and equipment & line leakage protection.
• Offers overload and short-circuit protection for circuits.
• Used for infrequent circuit connection, disconnection and switching under normal conditions.
| PRODUCT MODEL | SCB8LE-125 | |||
| Pole | 1P+N | 2P | 3P+N | 4P |
| Rated Operational Voltage/Ue(V) | AC230V | AC230V | AC400V | AC400V |
| Rated Operational Current/In(A) | 40A,50A,63A,80A,100A,125A | |||
| Frequency(Hz) | 50/60Hz | |||
| Rated Insulation Voltage/Ui(V) | 500V | |||
| Rated Impulse withstand Voltage/Uimp(V) | 8KV | |||
| Rated Breaking Capacity/Ics(kA) | 6 | |||
| Max. Discharge Current/Imax (A) | 10 | |||
| Overcurrent Instantaneous Release Type | B,C,D | |||
| Rated Residual Operating Current I△nm(A) | 30,50,100 | |||
| Rated Residual Non-operating Current I△nom(A) | 0.71△nm | |||
| Breaking Time s I△n | <0.1 | |||
| Rated Residual Breaking Capacity I△mA | IAmA2000 | |||
| Mechanical Life | 20000 Times | |||
| Electrical Life | ≥4000 | |||
| Device Width x Height (mm) | 54*112*77 | 81*112*77 | 108*112*77 | 135*112*77 |
| Mounting | Easy installed and fastening onto 35mm device rail(DIN) | |||
| Location | Indoor or in the Water-proof Box | |||
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