Inverter – GOODWE – GW30K-SDT-30
Product details
SDT G3
SDT G3 is a series of GoodWe three-phase string inverters designed for commercial and industrial photovoltaic systems with high-power modules. It includes units with rated power outputs of 25–40 kW, equipped with 3–4 MPPT trackers, depending on the model. The series combines a maximum efficiency of 98.6–98.7% with intelligent active cooling and noise emissions below 45 dB.
Key advantages of SDT G3
- Rated power 25–40 kW and 3–4 MPPT — model-dependent parameters, with a maximum input current of 40 A per MPPT.
- High efficiency: maximum 98.6–98.7% and European 97.7–98.3%, depending on the model.
- Optional AFCI 3.0 protection detects an electric arc, sends an alarm through the monitoring system and shuts down the inverter; an optional PID Recovery function is also available.
- Integrated protection include PV string current monitoring, PV insulation resistance detection, anti-islanding protection, and remote shutdown.
- IP66 protection rating and an operating temperature range from -30 to +60°C.
- Quiet operation and low energy consumption at night: noise emissions below 45 dB, intelligent active cooling and nighttime power consumption below 1 W.
Who is this a good choice for?
SDT G3 is a solution for businesses using three-phase photovoltaic systems with high-power modules in commercial and industrial facilities. A power range of 25–40 kW and 3–4 MPPT trackers allow the model to be matched to the system specifications, while integrated safeguards and optional AFCI 3.0 protection support safe operation.
| Parameter | GW25K-SDT-30 | GW30K-SDT-30 | GW40K-SDT-P30 |
|---|---|---|---|
| DC input data | |||
| Maximum input voltage (V) | 1100 | ||
| MPPT operating voltage range (V) | 140 ~ 950 | 140 ~ 1000 | |
| Start-up voltage (V) | 160 | ||
| Rated input voltage (V) | 600 | ||
| Maximum input current per MPPT (A) | 40 / 40 / 40 | 40 | |
| Maximum short-circuit current per MPPT (A) | 50 / 50 / 50 | 56 | |
| Number of MPPTs | 3 | 4 | |
| Number of photovoltaic module strings per MPPT | 2 | ||
| AC output data | |||
| Rated output power (W) | 25000 | 30000 | 40000 |
| Rated apparent output power (VA) | 25000 | 30000 | 40000 |
| Maximum AC active power (W) | 25000 | 30000 | 40000 |
| Maximum AC apparent power (VA) | 25000 | 30000 | 40000 |
| Rated output voltage (V) | 220 / 380, 230 / 400, 240 / 415, 3L / N / PE or 3L / PE | ||
| Output voltage range (V) | 180 ~ 260 (in accordance with the local standard) | 180 ~ 280 (in accordance with the local standard) | |
| Rated AC grid frequency (Hz) | 50 / 60 | ||
| AC grid frequency range (Hz) | 45 ~ 55 / 55 ~ 65 | ||
| Maximum output current (A) | 37,9 | 45,5 | 60,6 |
| Power factor adjustment range | ~1 (adjustable from 0.8 leading to 0.8 lagging) | ||
| Total harmonic distortion THD (%) | <3 | ||
| Efficiency | |||
| Maximum efficiency (%) | 98,7 | 98,6 | |
| European efficiency (%) | 98,3 | 97,7 | |
| Protection | |||
| PV string current monitoring | Integrated. | ||
| PV insulation resistance detection | Integrated. | ||
| Residual current monitoring | Integrated. | ||
| Reverse polarity protection in the DC circuit | Integrated. | ||
| Anti-islanding protection | Integrated. | ||
| AC circuit short-circuit protection | Integrated. | ||
| AC circuit surge protection | Integrated. | ||
| DC switch-disconnector | Integrated. | ||
| Surge arrester in the DC circuit | Type II | ||
| Surge arrester in the AC circuit | Type II | ||
| AFCI arc fault protection | Optional | ||
| Remote shutdown | Integrated. | ||
| PID recovery function | Optional | ||
| Power supply at night | Integrated. | Optional | |
| Operating conditions | |||
| Operating temperature range (°C) | -30 ~ +60 | ||
| Relative humidity (%) | 0 ~ 100 | ||
| Maximum operating altitude above sea level (m) | 4000 | ||
| Cooling method | Intelligent active cooling | ||
| Noise emission (dB) | <45 | ||
| IP protection rating | IP66 | ||
| Dimensions and weight | |||
| Weight (kg) | <30 | 31 | |
| Dimensions (W × H × D) (mm) | 585 × 483 × 230 | 585 × 483 × 237 | |
| Communication and display | |||
| Display | LED, LCD (Optional), WLAN + APP | ||
| Communication | RS485, WiFi, LAN or 4G or Bluetooth (Optional) | RS485, WiFi, LAN Bluetooth, 4G (Optional) | |
| Communication protocols | Modbus TCP / RTU | Modbus TCP (Optional) | |
| General information | |||
| Topology | Uninsulated | ||
| Nighttime power consumption (W) | <1 | ||
| DC connector | MC4 (max. 4 ~ 6mm²) | ||
| AC connector | OT connector (max. 25 mm²) | OT connector (max. 35 mm²) | |
For the GW40K-SDT-P30, at an input voltage between 1000 V and 1100 V, the inverter enters standby mode. Once the voltage returns to the 140 V–1000 V range, it resumes normal operation.

