Hybrid inverter · split-phase or three-phase · IP65
SEI-18K-UBP
An 18 kW hybrid inverter with three MPPT inputs, up to 380 A of battery charging and an IP65 enclosure.
- Rated output
- 18 kW
- Max. efficiency
- 97.6%
- Outdoor rated
- IP65
Final price from your local reseller, including shipping, duties and taxes.
Engineered & manufactured by Sunwave
01
Three MPPT inputs
42 A per input, up to 36 kW of PV connected on the 18 kW model.
02
Up to 380 A charging
Lithium BMS communication with dual activation.
03
Outdoor rated
IP65 enclosure, -40 °C to 60 °C, up to 9 units in parallel.
04
Peak-valley saving
Time-slot charging and discharging to cut the bill where tariffs vary.
Specifications
SEI-18K-UBP
Ratings
| Model | SEI-18K-UBP |
|---|---|
| Rated output power | 18,000 W |
| Max. apparent power | 19,800 VA |
| Rated output current | 75 A |
| Max. grid / generator charging current | 380 A |
| Max. charging / discharging current | 380 A |
| Max. PV access power | 36,000 W |
| Max. PV input power | 28,800 W |
AC output
- Max. peak power
- 2 × rated power for 10 s
- Rated output voltage
- 120/240 Vac split-phase, 120/208 Vac three-phase
- Rated frequency
- 50 / 60 Hz ± 0.3 Hz
- Waveform
- Pure sine wave
Battery
- Battery type
- Lead-acid, lithium-ion or user-defined
- Rated battery voltage
- 48 V
- Voltage range
- 40 to 60 Vdc
PV input
- MPPT trackers
- 3
- Strings per MPPT
- 2 + 2 + 2
- Max. input current
- 42 A + 42 A + 42 A
- Max. short circuit current
- 63 A + 63 A + 63 A
- Start-up voltage
- 120 Vdc
- Max. open circuit voltage
- 600 Vdc per input
- MPPT voltage range
- 120 to 500 Vdc
Grid / generator input
- Rated input voltage
- 120/240 Vac split-phase, 120/208 Vac three-phase
- Input voltage range
- 85 to 140 Vac / 170 to 280 Vac
- Input frequency range
- 50 / 60 Hz
- Bypass overload current
- 200 A
Efficiency
- MPPT tracking efficiency
- > 99%
- Max. efficiency
- 97.6%
- CEC efficiency
- 97%
General
- Parallel capacity
- 1 to 9 units
- Dimensions (W × H × D)
- 480 × 860 × 313 mm
- Weight
- 64.7 kg
- Protection
- IP65
- Operating temperature
- -40 °C to 60 °C, derated above 45 °C
- Humidity
- 0 to 100%
- Noise
- < 55 dB
- Cooling
- Heat sink and intelligent air cooling
- Warranty
- 5 years
Communication
- Ports
- RS485, CAN, USB, dry contact
- External modules (optional)
- Wi-Fi, GPRS
Protection
- PV reverse polarity
- Yes
- Anti-islanding
- Yes
- Residual current monitoring
- Yes
- Insulation resistance monitoring
- Yes
- Output short circuit
- Yes
- Output overcurrent
- Yes
- Overvoltage
- AC type III, DC type II
- Surge
- AC type II, DC type II
Certifications
- Standards
- IEC 62109-1, IEC 62109-2, EN 61000-6-1, EN 61000-6-3, FCC 15 class B
Specifications may change without notice.
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