Description
Sungrow SH15/20/25T Three-Phase Hybrid Inverter, 15 to 25 kW
The Sungrow SH15/20/25T range consists of three-phase hybrid inverters for photovoltaic systems with energy storage and backup power. It includes the SH15T, SH20T and SH25T models, with rated AC power outputs of 15, 20 and 25 kW, three independent MPPT trackers and a connection for compatible high-voltage lithium-ion batteries.
It features a 63 A bypass per phase, a backup switchover time of less than 10 ms and support for unbalanced output in both grid-connected and backup modes. Its five string inputs allow the PV array to be distributed across three MPPTs, while the battery interface supports charging and discharging currents of up to 50 A, depending on the connected battery.
Key Features
15, 20 and 25 kW Power Ratings
Three three-phase models to match AC power output, storage and backup capabilities to your project.
Three MPPTs and Five String Inputs
2 / 2 / 1 string configuration, with a DC input current of up to 16 A per string.
Integrated 63 A Bypass per Phase
Supplies loads connected to the backup output when the grid is available, within the limits of the inverter and the installation.
Backup Power with Fast Switchover
Backup switchover in less than 10 ms and peak power for 10 seconds of up to 36.5 kW / 36.5 kVA on the SH25T.
Charging and Discharging at up to 50 A
Interface for compatible 100 to 700 V batteries, with a maximum charging power of 30 kW and discharging power of 15, 20 or 25 kW, depending on the model.
Protection and Installation Flexibility
Integrated AFCI 2.0, IP65 protection and support for unbalanced output in grid-connected and backup modes.
Technical Specifications
Model Comparison
| Parameter | SH15T | SH20T | SH25T |
|---|---|---|---|
| Rated AC Output Power | 15,000 W | 20,000 W | 25,000 W |
| Maximum Recommended PV Power | 30,000 Wp | 40,000 Wp | 50,000 Wp |
| AC Apparent Output Power | 15,000 VA | 20,000 VA | 25,000 VA |
| AC Output Current | 22.8 A | 30.4 A | 37.9 A |
| Maximum Battery Charging Power | 30,000 W | 30,000 W | 30,000 W |
| Maximum Battery Discharging Power | 15,000 W | 20,000 W | 25,000 W |
| Rated Off-Grid Backup Power | 15,000 W / 15,000 VA | 20,000 W / 20,000 VA | 25,000 W / 25,000 VA |
| Peak Backup Power for 10 s | 25,500 W / 25,500 VA | 32,000 W / 32,000 VA | 36,500 W / 36,500 VA |
| Maximum / European Efficiency | 98.1 % / 97.6 % | 98.1 % / 97.6 % | 98.2 % / 97.8 % |
| Unit Weight | 38 kg | 38 kg | 40 kg |
| Cooling | Natural Convection | Natural Convection | Forced-Air Cooling |
| Specified Noise Level | 35 dB(A) | 35 dB(A) | 50 dB(A) |
Charging and discharging power depend on the voltage and capabilities of the connected battery. Peak backup power can only be achieved if sufficient PV and battery power is available.
PV Input and MPPT Trackers
- Maximum PV input voltage: 1,000 V DC.
- Minimum PV input voltage: 150 V DC.
- Start-up voltage: 180 V DC.
- Rated PV input voltage: 600 V DC.
- MPPT operating voltage range: 150–950 V DC.
- Number of independent MPPT trackers: 3.
- Number of strings per MPPT: 2 / 2 / 1.
- Maximum PV input current: 80 A in total, distributed as 32 / 32 / 16 A per MPPT.
- Maximum DC input current per string specified by the manufacturer: 16 A.
- Maximum DC short-circuit current: 100 A in total, distributed as 40 / 40 / 20 A per MPPT.
- Maximum input connector current: 30 A.
The maximum connector current does not override the input limit per string or MPPT. Refer to the user manual for the full-load MPPT range. Exceeding the MPPT operating voltage range activates the inverter’s protection.
Battery Connection and Energy Storage
- Battery type: compatible lithium-ion.
- Battery voltage range: 100–700 V DC.
- Maximum charging current: 50 A.
- Maximum discharging current: 50 A.
- Maximum charging power: 30 kW for all three models.
- Maximum discharging power: 15 kW for the SH15T, 20 kW for the SH20T and 25 kW for the SH25T.
The battery must be selected in accordance with Sungrow’s compatibility requirements. The voltage range does not imply compatibility with every high-voltage battery. Actual charging and discharging power depend on the connected battery, its operating voltage and system limits.
Grid Connection and AC Output
- Three-phase connection: 3 / N / PE.
- Rated AC voltage: 220 / 380 V, 230 / 400 V or 240 / 415 V.
- Specified AC voltage range: 270–480 V.
- Rated grid frequency: 50 / 60 Hz.
- Frequency range: 45–55 Hz at 50 Hz and 55–65 Hz at 60 Hz.
- Total harmonic distortion: less than 3 % at rated power.
- Power factor at rated power: greater than 0.99.
- Adjustable power factor: from 0.8 leading to 0.8 lagging.
- Maximum apparent power drawn from the grid: 43,000 VA, subject to the settings specified in the manual.
- Support for unbalanced output in grid-connected and backup modes.
Bypass and Backup During Power Outages
- Integrated bypass: 63 A per phase.
- Maximum power for backup loads when the grid is available: 43,000 W, subject to the settings and conditions in the manual.
- Maximum current for backup loads when the grid is available: 3 × 63 A.
- Backup switchover time: less than 10 ms.
- Rated off-grid voltage: 3 / N / PE, 220 / 380 V, 230 / 400 V or 240 / 415 V, with a tolerance of ±2 %.
- Rated off-grid frequency: 50 / 60 Hz, with a tolerance of ±0.2 %.
- Voltage harmonic distortion with a linear load: 2 %.
- Rated off-grid backup power: 15, 20 or 25 kW, depending on the model.
- Peak power for 10 seconds: 25.5, 32 or 36.5 kW, depending on the model.
Bypass Power and Backup Power
The 43 kW specified for backup loads when the grid is available applies to operation with a grid supply. During an outage, rated backup power is 15, 20 or 25 kW, depending on the inverter. The ability to provide backup for the entire installation depends on its loads and electrical design. Backup duration and actual power also depend on the battery, its state of charge and available PV generation.
Integrated Protection and Functions
- Integrated AFCI 2.0 for arc fault detection.
- Grid monitoring.
- PV DC reverse polarity protection.
- Battery input reverse polarity protection.
- AC short-circuit protection.
- Leakage current protection.
- Integrated PV DC switch.
- Type II surge protection on DC and AC sides.
- Integrated PID Zero function.
- IP65 protection rating.
- C5 corrosion resistance classification specified by the manufacturer.
Installation and Operating Conditions
- Unit dimensions, width × height × depth: 620 × 480 × 245 mm.
- Weight: 38 kg for the SH15T and SH20T; 40 kg for the SH25T.
- Mounting: wall-mounted.
- Operating ambient temperature: −25 to +60 °C.
- Permissible relative humidity: 0–100 %, non-condensing.
- Natural convection cooling for the SH15T and SH20T; forced-air cooling for the SH25T.
- Maximum operating altitude: 2,000 m.
- Specified noise level: 35 dB(A) for the SH15T and SH20T; 50 dB(A) for the SH25T.
- Transformerless topology.
- Indoor or outdoor installation, following the manufacturer’s instructions.
Communications and Connections
- Display and LED indicators.
- Communications: RS485, WLAN, Ethernet and CAN.
- Inputs and outputs: 4 DI, 2 DO and DRM0.
- PV connection: MC4-compatible connector, with a maximum cable cross-section of 6 mm².
- Battery connection: Plug & Play, with a maximum cable cross-section of 10 mm².
- AC connection: Plug & Play, with a maximum cable cross-section of 16 mm².
Standards Listed in the Datasheet
IEC/EN 62109, IEC 61000-6, EN 62477-1, IEC 61727, IEC 62116, IEC 62920, EN 55011, CISPR 11, VDE-AR-N-4105, EN 50549-1, NRS 097, AS/NZS 4777.2:2020, TOR Type A, R25 and CEI 0-21.
Sungrow Inverters for Three-Phase Solar Self-Consumption with Energy Storage
The Sungrow SH15T, SH20T and SH25T combine three MPPTs, high-voltage energy storage and a backup output in a wall-mounted unit. The integrated bypass and support for unbalanced loads make them an option for three-phase installations that need to manage PV energy, batteries and continuity of supply.
At Vico Export Solar Energy, we supply Sungrow inverters and photovoltaic equipment to installers, engineering firms and distributors, with domestic and international shipping. Contact our team to discuss availability, battery compatibility and supply terms for your project.
Datasheet and Enquiries
Explore the features of the SH15T, SH20T and SH25T models and the technical specifications of the range.
