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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
• Standard：IEC60269-6
• Rated Voltage：DC1000V
• Rated current: 50A、63A、80A、100A、125A、160A
• Breaking capacity：50kA
• Protection object：It is used in the photovoltaic combiner box to provide safe and reliable
protection for overload and short-circuit current faults of PV modules and PV arrays.
• Operating class：gPV
• Applicable environment：Temperature,﹣5℃～﹢40℃；Humidity, less than 90%.
ELECTRICAL TECHNICAL REFERENCE
| Product model | Rated current (A) | I²t (A²s) | Power loss (w) 1.0 In |
Net weight |  |
|
| Melting | Clearing | |||||
| SFPVNH1 | 50 | 159 | 1431 | 11.0 | 360g | |
| SFPVNH1 | 63 | 467 | 4203 | 12.0 | ||
| SFPVNH1 | 80 | 638 | 5742 | 15.50 | ||
| SFPVNH1 | 100 | 1300 | 11700 | 16.50 | ||
| SFPVNH1 | 125 | 2547 | 22923 | 17. 50 | ||
| SFPVNH1 | 160 | 5198 | 46782 | 22.00 | ||
| Product Type | Rated Current | Led indicator | Net weight |  |
| SFPV-NH1B | 160A | NO | 400g |
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