Sungrow SH20T 20 kW 3‑Phase Commercial
Hybrid Inverter
- 20 kW three‑phase hybrid inverter for small commercial, logistics and light industrial sites needing reliable backup and self‑consumption.
- The Sungrow SH20T inverter requires a minimum of 3 and a maximum of 8 SBH050 (5.0 kWh) battery modules per SBH battery tower for stable operation with this inverter family.
- One or two 15-40kWh battery towers each can be connected to a single SH20T via a Y‑connector (parallel cable), with both towers required to be identical in model, module count, and size.
- Supports PV and lithium battery storage with 50 A fast charge / discharge for peak‑shaving and backup.
- Built‑in 63 A bypass and 10 ms seamless transfer for whole‑load or critical‑load backup with suitable switchgear.
The Sungrow SH20T is a 20 kW three‑phase hybrid inverter designed for commercial and industrial premises with three‑phase supplies. It combines high‑voltage PV input with a lithium battery connection to provide grid‑tied operation, backup supply and flexible energy management in one compact unit. Typical applications include smaller warehouses, logistics depots, retail units and offices aiming to cut grid consumption and maintain key services during grid outages.
Sungrow SH20T key features
- 20 kW three‑phase hybrid operation with recommended max. PV input power of 40 kWp and lithium battery support.
- Support 100 % unbalance output in backup and on‑grid modes for mixed three‑phase and single‑phase loads.
- Built‑in 63 A bypass for whole‑home or whole‑site backup and 10 ms seamless switching to protect sensitive equipment.
- Three independent MPPTs, up to 1000 V DC input, max. 16 A per string and 80 A total PV input current.
- Outdoor‑ready IP65/C5 enclosure with quiet operation suitable for plant rooms or external walls.
Typical commercial applications
The SH20T suits rooftop PV and battery systems on small warehouses, last‑mile logistics depots, trade counters and office buildings where three‑phase loads and backup are required. Paired with compatible lithium battery banks, it can support night‑time operation, peak‑shaving and short‑duration backup of lighting, IT, refrigeration and other critical services.
Installation and UK support
This inverter must be installed and commissioned by a suitably qualified electrician or solar installer as part of a correctly designed three‑phase PV and battery system with appropriate protection, switchgear and grid approvals where required. Energian can introduce trusted installation partners for full system design, installation and commissioning across the UK.
UK expert support is available – contact Energian by phone, email or live chat for help with system sizing, compatibility checks and project support, or visit our office for an in‑person consultation.
Technical specifications
Headline functions
- Support 100 % unbalance output in backup and on grid mode
- Max. 16 A DC input current per string
- 50 A fast charge / discharge current
- Built‑in 63 A bypass for whole home backup
- 10 ms seamless switch
- Peak output up to 36500 VA (10 s) in backup mode (SH25T)
- Plug & Play installation
- Quiet operation for indoor or outdoor installation
- Support precise AFCI
- IP65/C5
Input (DC)
- Input (DC)
- Recommended max. PV input power 30000 Wp 40000 Wp 50000 Wp
- Max. PV input voltage * 1000 V
- Min. PV input voltage / Startup input voltage 150 V / 180 V
- Rated PV input voltage 600 V
- MPPT operating voltage range ** 150 V - 950 V
- No. of independent MPP trackers 3
- No. of PV strings per MPPT 2 / 2 / 1
- Max. PV input current 80 A ( 32 A / 32 A / 16 A )
- Max. DC short-circuit current 100 A ( 40 A / 40 A / 20 A )
- Max. current for input connector 30 A
Battery data
- Battery data
- Battery type Li-ion battery
- Battery voltage range 100 V - 700 V
- Max. charge / discharge current *** 50 A / 50 A
- Max. charge / discharge power 30000 W / 15000 W 30000 W / 20000 W 30000 W / 25000 W
Input and Output (AC)
- Input and Output (AC)
- Max. AC power from grid **** 43000 VA
- Rated AC output power 15000 W 20000 W 25000 W
- Max. AC output apparent power 15000 VA 20000 VA 25000 VA
- Max. AC output current 22.8 A 30.4 A 37.9 A
- Rated AC voltage 3 / N / PE, 220 V / 380 V ; 230 V / 400 V; 240 V / 415 V
- AC voltage range 270 V - 480 V
- Rated grid frequency 50 Hz / 60 Hz
- Grid frequency range 45 Hz - 55 Hz / 55 Hz - 65 Hz
- Harmonic (THD) < 3 % ( of rated power )
- Power factor at rated power / Adjustable power factor > 0.99 / 0.8 leading to 0.8 lagging
- Feed-in phases / connection phases 3 / 3-N-PE
Backup data (on‑grid mode)
- Backup data(on grid mode)
- Max. output power for backup load **** 43000 W
- Max. output current for backup load 3 * 63 A
Backup data (off‑grid mode)
- Backup data(off-grid mode)
- Rated voltage 3 / N / PE, 220 / 380 V; 230 / 400 V; 240 / 415 V ( ± 2 % )
- Rated frequency 50 Hz / 60 Hz ( ± 0.2 % )
- THDV ( @Linear load ) 2 %
- Backup switch time < 10 ms
- Rated output power 15000 W / 15000 VA 20000 W / 20000 VA 25000 W / 25000 VA
- Peak output power ***** 25500 W / 25500 VA ,10 s 32000 W / 32000 VA ,10 s 36500 W / 36500 VA ,10 s
Efficiency
- Efficiency
- Max. efficiency / European efficiency 98.1 % / 97.6 % 98.2 % / 97.8 %
Protection & Function
- Protection & Function
- Grid monitoring Yes
- DC reverse polarity protection Yes
- AC short-circuit protection Yes
- Leakage current protection Yes
- DC switch (solar) Yes
- Surge protection DC Type II / AC Type II
- PID zero Yes
- Battery input reverse polarity protection Yes
General data
- General data
- Topology (solar / battery) Transformerless / Transformerless
- Degree of protection IP65
- Dimensions (W * H * D) 620 mm * 480 mm * 245 mm
- Weight 38 kg 40 kg
- Mounting method Wall-mounting bracket
- Operating ambient temperature range -25 ℃ - 60 ℃
- Allowable relative humidity range(Non-condensing) 0 % - 100 %
- Cooling method Natural convection Fan cooling
- Max. operating altitude 2000 m
- Noise(Typical) 35 dB ( A ) 35 dB ( A ) 50 dB ( A )
- Display LED
- Communication RS485, WLAN, Ethernet, CAN
- DI / DO DI * 4 / DO * 2 / DRM0
- DC connection type MC4 compatible connector ( PV,Max.6 mm² ) /Plug and play connector ( battery, Max.10 mm² )
- AC connection type Plug and play connector ( Max.16 mm² )
- Compliance 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, CEI 0-21
* Input voltage exceeding the MPPT operating voltage range triggers inverter protection ** Please refer to the user manual for the full load MPPT voltage range *** Depending on the connected battery **** Please refer to the user manual and modify the settings based on actual load power ***** Can be reached only if PV and battery power is sufficient
Shipping & availability
Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, please contact us on +44 2080640335 or info@energian.co.uk for a quote.