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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
• Dual Voltage Rating: Suitable for both 1000V and 1500VDC systems.
• High-Current Protection: 125A-400A rated current with30kA/50kA breaking capacity.
• Ultra-Fast Operation: 1-3ms time constant for superior equipment protection.
• International Compliance: Meets IEC 60269-6 and GB/T13539.6 standards.
• Premium Materials: Pure silver melt and silver-plated cover for low resistance.
• High Efficiency: Low temperature rise and reduced power loss.
• Compact Design: Standardized dimensions for easy integration and space saving.
| MODEL | RATED CURRENT | POWER LOSS 1.0IN (W) | BREAKING CAPACITY | NET WEIGHT |
| SNHPV | 125A | 21.0 | 1000VDC TUV&CE: 25kA |
1.25kg |
| 160A | 29.5 | |||
| 200A | 35.6 | |||
| 250A | 37.5 | |||
| 315A | 46.3 | |||
| 350A | 53.8 | |||
| 400A | 62.4 | 1500VDC UL: 25kA |
1.315kg | |
| 225A | 38.6 | |||
| 250A | 43.5 | |||
| 315A | 52.3 | |||
| 355A | 58.0 |
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