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EspañolWhy 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
• Standards compliant GB/T18802.1, IEC61643-11.
• They are suitable for TT, IT, TN-S, TN-C and TN-C-S power supply systems with
AC frequency of 50/60Hz and rated voltage of 230/480V and below
• Teleindication contact SPD can be made into a product with teleindication contacts
If one or more modules of the protector fail, the contacts will be closed and a fault
message will be sent.
•The voltage permanently applied between the two terminals of the surge protector
should not be greater than the maximum continuous working voltage Uc value of the
surge protector.
•The voltage protection level Up of the surge protector should be less than the withstand
voltage and impulse limit of the protected equipment.
| Level parameter | ||
| Product specifications | SUP2S-40 | |
| Voltage (V)≤420v | 220v/275v/385v/420v | |
| Voltage protection level Up (kV) | 1.8 | |
| Nominal current ( kA) | 20 | |
| Maximum discharge current (kA) | 20 | |
| Poles | 2P | 4P |
| Dimensions | 18*90*70 | 36*90*70 |
| Response time( ns) | ≤25 | |
| Test category | Class T2 | |
| SPD type | Voltage limiting type | |
| Protection degrees | IP20 | |
| Insulation case material | PBT/PA66 | |
| Flame retardant grade | Complies with UL94V0 | |
| Installation type | 35mm standard electrical rail | |
| Operating temperature | + 40℃- - 7℃ | |
| Window indication | Green when normal; Red when it fails | |
| Standards compliant | GB/T1 8802.2011 IEC61643-11 | |
| Teleindication function | Optional | |
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