Growatt WIT 40K-HU-US L2 40kW 208V 3-Phase Hybrid Inverter with Backup
Growatt WIT 40K-HU-US L2 40kW 208V 3-Phase Hybrid Inverter with Backup
Regular price
$11,860.00 USD
Regular price
$13,033.00 USD
Sale price
$11,860.00 USD
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per
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- SKU
- WIT-40K-HU-US-L2
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5–10 business days
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The Growatt WIT 40K-HU-US L2 is a 40kW three-phase 208Vac hybrid inverter with integrated backup function for commercial storage.
Key Features
- 40kW hybrid 3-phase 208Vac inverter with backup function
- Integrated WiFi/LAN + Tigo RSD transmitter (WL, TRS-T)
- Pairs with Growatt APX HV battery systems
Compatibility: Growatt APX HV batteries; TPM-CT-E US meters
Specifications
| Model | WIT 40K-HU-US L2 (WL)(TRS-T) |
| Rated AC Output | 40,000 W, 208V 3-phase |
| Note | Part number not printed on Growatt 6/30/26 sheet — confirm with Growatt |
| Certifications | UL1741, UL1741SA/SB, IEEE1547, CSA C22.2 |
Authorized Growatt distribution — full manufacturer warranty. Ships as single units via ground from Growatt USA (Eastvale, CA) or Louisville, KY.
| SKU | WIT-40K-HU-US-L2 |
|---|---|
| Manufacturer | Growatt |
| Datasheet |  |
| Height | |
| Length | |
| Width |
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Specifications
Datasheet
Max. PV Input Power
86.4 kW
MPPT Trackers
8
AC Nominal / Max. Apparent Power
40 kW / 44 kVA
Max. AC Output Current
122.2 A @208V / 115.5 A @220V
AC Input Power
80 kW / 80 kVA (222.2 A @208V max)
Backup Power
40 kW / 48 kVA (max single-phase 13.3 kW)
Battery Charge/Discharge
113 A / 45.3 kW
Weight
337.3 lb (153 kg)
Start Voltage
195 V
Max. PV Open-Circuit Voltage
630 V
MPPT Voltage Range
180–550 V (360 V nominal)
Max. Input Current per MPPT
32 A (40 A Isc)
PV Strings per MPPT
2
AC Nominal Voltage
208/220V 3-phase, −15%/+10%
Grid Frequency
60 Hz (55–65 Hz)
Power Factor
−1 ~ +1
THDi
<3% (@100% load)
AC Grid Connection
3P3W+PE / 3P4W+PE
Battery Voltage Range
380–650 V (recommended @512V)
Battery Communication
RS485 / CAN (lithium & lead-acid)
Backup AC Voltage
120/127V (L-N), 208/220V (L-L); 50/60 Hz
Backup Overload
≤110% continuous; 110–120% <10 min; >120% 200 ms
Backup Load Unbalance
100%
On/Off-Grid Transfer Time
≤16.6 ms
Max. Efficiency
98.2%
Dimensions (W×H×D)
33.5 × 53.1 × 20.1 in (850 × 1350 × 510 mm)
Operating Temperature
−22°F to +140°F, derating above 122°F
Max. Altitude
13,123 ft (4,000 m)
Topology
Transformerless
Cooling
Smart air cooling
Enclosure
IP66 / NEMA 4X
Display
OLED + LED / WiFi + APP
Communication
RS485/CAN; WiFi/4G/LAN (optional)
Warranty
5 / 10 years
Certifications
UL1741:2021, UL1741 SA/SB:2020, IEEE1547:2018, IEEE1547.1:2020, HECO Rule 14, E-5000, CSIP SA17-SA18, UL1998:2018, CEC, FCC Part 15, CSA C22.2:107.1
Certifications<