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Kstar E4KT-D22 4 kW three-phase hybrid inverter from the BlueSpark series. Low-voltage all-in-one energy storage supporting on-grid and off-grid operation with IP66 protection rating.
The Kstar E4KT-D22 is a 4 kW three-phase hybrid inverter from the BlueSpark Residential ESS series. This safe, low-voltage all-in-one solution enables energy storage in single-family homes, supporting on-grid and off-grid operation, and 100% unbalanced three-phase load. The IP66-rated enclosure allows for outdoor installation.
| Rated AC power | 4 kW (4000 W) |
| Max. apparent AC power | 4400 VA |
| Max. continuous input power | 10000 W |
| Number of MPPT trackers | 2 |
| Max. PV voltage | 1000 V |
| MPPT voltage range | 140 – 950 V |
| AC grid voltage | 400 Vac (3-phase) |
| Rated output current | 5.8 A |
| Battery type | LFP (LiFePO4) |
| Battery voltage | 51.2 V |
| Max. PV efficiency | 96.6% |
| European efficiency | 94.5% |
| Protection rating | IP66 |
| Dimensions (W×H×D) | 725 × 490 × 245 mm |
| Weight | 40 kg |
| Warranty | 5 years (product) |
Kstar E4KT-D22 — 4 kW three-phase hybrid inverter BlueSpark — B2B wholesale prices for installers and contractors. Check availability and terms of cooperation: contact us.
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