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Daran New Energy Technology Co., Ltd is engaged in solar panels, inverters, battery pack production and sales of manufacturers.
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| Datasheet | WIT 28K-HU-US L2 | WIT 35K-HU-US L2 | WIT 40K-HU-US L2 | WIT 55K-HU-US L2 |
|---|---|---|---|---|
| Input Data (PV) | ||||
| Max. recommended PV power (for module STC) | 54kW | 75.6kW | 86.4kW | 108kW |
| Start voltage | 195V | |||
| Max. open circuit voltage of PV* | 630V | |||
| MPPT nominal voltage/range | 360V,180V~550V | |||
| Max. input current per MPP tracker | 32A | |||
| Max. short-circuit current per MPP tracker | 40A | |||
| No. of PV strings per MPP tracker | 2 | |||
| No. of MPP trackers | 7 | 7 | 8 | 10 |
| Output Data (AC) | ||||
| AC nominal power/Max. AC apparent power | 28kW/30.8kVA | 35kW/38.5kVA | 40kW/44kVA | 55kW/60.5kVA |
| Nominal AC voltage/range | 208V/220V,-15%~+10% | |||
| AC grid frequency/range | 60Hz,55~65Hz | |||
| Max. output current | 85.6A@208V 80.8A@220V | 106.9A@208V 101A@220V | 122.2A@208V 115.5A@220V | 168.1A@208V 158.8A@220V |
| Adjustable power factor | -1...+1 | |||
| THDi | <3% (@100% load) | |||
| AC grid connection type | 3P3W+PE/3P4W+PE | |||
| Input Data (AC) | ||||
| AC nominal power | 56kW | 70kW | 80kW | 110kW |
| Max. AC apparent power | 56kVA | 70kVA | 80kVA | 110kVA |
| Nominal AC voltage/range | 208V/220V,-15%~+10% | |||
| Nominal AC grid frequency/range | 50/60Hz,45~55Hz/55~65Hz | |||
| Nominal input current | 155.6A@208V 147A@220V | 194.4A@208V 183.7A@220V | 222.2A@208V 210A@220V | 305.6A@208V 288.7A@220V |
| Max. input current | 155.6A@208V 147A@220V | 194.4A@208V 183.7A@220V | 222.2A@208V 210A@220V | 305.6A@208V 288.7A@220V |
| Backup Power (AC power) | ||||
| AC nominal power/Max. AC apparent power | 28kW/33.6kVA | 35kW/42kVA | 40kW/48kVA | 55kW/66kVA |
| Max. single phase power | 9.3kW | 11.6kW | 13.3kW | 18.3kW |
| Nominal AC voltage | 120V/127V(L-N),208V/220V(L-L) | |||
| Nominal AC frequency | 50/60Hz | |||
| Max. output current | 93.3A@208V 88.2A@220V | 116.7A@208V 112.6A@220V | 133.3A@208V 126A@220V | 183.3A@208V 173.2A@220V |
| Overload capability | ≤110%: Continues; 110%~120%: <10min; >120%: 200ms | |||
| Load unbalance | 100% | |||
| THDv | <3% (Linear load) | |||
| On/off grid transfer time | ≤16.6ms | |||
| Battery Data (DC) | ||||
| Battery voltage range | 380V~650V, recommended @ 512V | |||
| Max. charging / discharging current | 79A | 99A | 113A | 156A |
| Continuous charging / discharging power | 31.7kW | 39.7kW | 45.3kW | 62.3kW |
| BMS communication | RS485/CAN | |||
| Types of battery | Lithium | |||
| Efficiency | ||||
| Max. efficiency | 98.2% | |||
| Protection Devices | ||||
| PV reverse polarity protection | Yes | |||
| Battery reverse protection | Yes | |||
| AC/DC surge protection | Type II | |||
| Insulation resistance monitoring | Yes | |||
| Ground fault monitoring | Yes | |||
| Grid monitoring | Yes | |||
| Residual-current monitoring unit | Yes | |||
| AC short-circuit protection | Yes | |||
| String monitoring | Yes | |||
| Anti-islanding protection | Yes | |||
| PID protection | Yes | |||
| AFCI function | Opt | |||
| General | ||||
| Dimensions(W/H/D) | 33.5/53.1/20.1inch(850/1350/510mm) | |||
| Weight | 153kg/337.3lbs | 153kg/337.3lbs | 160kg/352.7lbs | 160kg/352.7lbs |
| Operating temperature range | -22℉~+140℉,>122℉ derating | |||
| Altitude | 13123ft(4000m) | |||
| Topology | Transformerless | |||
| Cooling | Smart air cooling | |||
| Enclosure | IP66/NEMA 4X | |||
| Display | OLED+LED+WIFI+APP | |||
| Interfaces:RS485/CAN | Yes | |||
| Interfaces:WIFI/4G/LAN | Opt | |||
| Warranty:5 / 10 years | Yes/Opt | |||
| UL1741:2021,UL1741 SA:2020,IEEE1547:2018,IEEE1547.1:2020,HECO Rule14,E-5000,CSIP,SA17-SA18,UL1998:2018,CEC,FCC Part 15,CSA C22.2:107.1 | ||||
| *1 The maximum open circuit voltage of PV string must be lower than the maximum input voltage of the battery system connected to the inverter. | ||||
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