Sungrow SG350HX
Official manufacturer EU / GL verified Sept. 3, 2026
Unresolved safety-relevant conflict
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Identity
| category | inverters |
| ean | UNKNOWN |
| generation | HX (1500 Vdc utility string platform) |
| grid_type | 3 / PE, 800 V (no neutral) |
| hardware_revision | UNKNOWN |
| legacy_name | UNKNOWN |
| manufacturer | Sungrow |
| manufacturer_legal_entity | Sungrow Power Supply Co., Ltd. |
| market_version | UNKNOWN |
| model | SG350HX |
| mpn | UNKNOWN |
| order_code | UNKNOWN |
| phase_configuration | three-phase (3 / PE, no neutral) |
| product_family | SG285/320/333/350HX (HX utility-scale 1500 Vdc string inverter) |
| product_status | active |
| product_status_detail | active - listed on the official 2026 sungrowpower.com string-inverter index as 'SG320/350HX (320/350kW)'; datasheet Version 23 is dated 2025-06-17 |
| product_status_evidence | official product index fetched 2026-09-03 |
| region | EU / GL |
| release_year | UNKNOWN |
| sku | UNKNOWN |
| subcategory | grid-tied PV string inverter (utility-scale, 1500 Vdc, no battery interface) |
| topology | transformerless (no galvanic isolation) |
| variant_note | Distinct from SG350HX-20 and from the US-market SG350HX-US, both separately listed on the official index. MPPT count is order-configurable (12 x 40 A, or optionally 16 x 30 A). |
Electrical
| dc_ac_ratio | UNKNOWN |
| european_efficiency_pct | 98.8 |
| grid_frequency_range | 45 Hz - 55 Hz / 55 Hz - 65 Hz |
| max_ac_power_w | UNKNOWN - see data_conflicts |
| max_apparent_power_va | UNKNOWN - see data_conflicts |
| max_dc_short_circuit_current_total_a | UNKNOWN |
| max_dc_voltage_v | 1500 |
| max_efficiency_pct | 99.02 |
| max_input_current_per_input_a | UNKNOWN |
| max_input_current_per_mppt_a | 40 A (12-MPPT configuration); 30 A (optional 16-MPPT configuration) |
| max_input_current_total_a | 480 A stated as '12 * 40 A' (optional: '16 * 30 A') |
| max_output_current_a | UNKNOWN - see data_conflicts (the extraction returned 254 A, identical to the SG320HX) |
| max_pv_input_power_w | UNKNOWN |
| max_short_circuit_current_per_mppt_a | 60 |
| min_operating_voltage_v | 500 |
| mppt_voltage_max_v | 1500 |
| mppt_voltage_min_v | 500 |
| mppt_voltage_range_for_nominal_power | UNKNOWN |
| night_power_consumption | < 6 W |
| nominal_dc_voltage_v | 1080 |
| nominal_frequency | 50 Hz / 60 Hz |
| nominal_voltage | 3 / PE, 800 V |
| num_mppt | 12 (optional configuration: 16) |
| num_pv_inputs | 24 (12 MPPTs x 2 strings) in the standard configuration |
| oversizing_guidance | UNKNOWN |
| power_factor_range | > 0.99 default; 0.8 leading - 0.8 lagging |
| rated_ac_power_w | UNKNOWN - see data_conflicts. The product page headline says '320/350 kW' for the SG320/350HX pair, but the V23 datasheet's AC-output-power line came back with the SG320HX temperature-derating string, so the SG350HX rated figure is not safely established. |
| rated_output_current_a | UNKNOWN - see data_conflicts (the extraction returned 231 A) |
| recommended_pv_power_w | UNKNOWN |
| startup_voltage_v | 550 |
| string_rules | 12 independent MPPTs, 2 strings per MPPT, 40 A per MPPT; optionally 16 MPPTs at 30 A |
| strings_per_mppt | 2 |
| thd | < 3 % at nominal power |
| voltage_range | 640 V - 920 V |
Physical / mechanical
| cooling | smart forced air cooling |
| dimensions_mm | 1136 mm * 870 mm * 361 mm |
| enclosure_material | UNKNOWN |
| mounting_type | ['UNKNOWN'] |
| weight_kg | <= 116 |
Installation
| ac_connector | OT / DT terminal |
| dc_connector | MC4-Evo2 (max. 6 mm2, optional 10 mm2) |
| indoor_outdoor | outdoor (IP66) |
| max_installation_altitude_m | 4000 m |
| mounting_orientation | UNKNOWN |
Environment
| cooling | smart forced air cooling |
| corrosion_class | C5 |
| fan_replaceable | UNKNOWN |
| ip_rating | IP66 |
| max_altitude_m | 4000 m |
| night_power_consumption | < 6 W |
| noise_db | UNKNOWN |
| operating_temperature | -30 C to 60 C |
| relative_humidity | UNKNOWN |
Interfaces & connectors
| bluetooth | yes (Bluetooth + APP) |
| can | none documented |
| communication_label | RS485 / PLC |
| display | LED, Bluetooth + APP |
| ethernet | not documented in the fetched datasheet |
| isolarcloud_dependency | iSolarCloud used for plant monitoring; no local-operation dependency stated |
| local_communication | RS485 / PLC |
| logger_support | NOT_LISTED in Compatibility List 4.3 |
| modbus_rtu | UNKNOWN |
| modbus_tcp | UNKNOWN |
| plc | yes (power line communication) |
| register_map_availability | UNKNOWN |
| rs485 | yes |
| wifi | not documented |
| winet_support | NOT_LISTED - the Compatibility List 4.3 WiNet rows cover SGxxRS / SGxxRT / SGxxCX only |
Protection
| afci | not stated in the fetched HX datasheet protection row - UNKNOWN |
| anti_islanding | yes |
| dc_reverse_polarity | yes (DC reverse connection protection) |
| dc_switch | yes (DC and AC switches) |
| grid_protection | grid monitoring; LVRT, HVRT, active and reactive power control, power ramp rate control, Q-U control, P-f control |
| insulation_monitoring | ground fault monitoring yes; PV string current monitoring yes |
| pid | anti-PID capability |
| q_at_night | yes |
| rcmu | leakage current protection yes |
| spd | Type II DC and AC surge protection |
Certifications
| grid_codes | ['IEC 62109', 'IEC 61727', 'IEC 62116', 'IEC 60068', 'IEC 61683', 'VDE-AR-N 4110:2018', 'VDE-AR-N 4120:2018', 'EN 50549-2', 'UNE 206007-1:2013', 'P.O.12.3', 'UTE C15-712-1:2013'] |
| grid_support | Q at night function, LVRT, HVRT, active and reactive power control, power ramp rate control, Q-U control, P-f control |
Warranty & service
| extension_options | UNKNOWN |
| note | no warranty statement appears in the fetched datasheet extraction |
| standard_warranty | UNKNOWN |
Documents
Recorded conflicts
electrical.rated_ac_power_w / max_apparent_power_va / max_output_current_a / rated_output_current_a Review required
'352 kVA @ 30 C / 320 kVA @ 40 C / 295 kVA @ 50 C', max. AC output current 254 A, nominal output current 231 A — document[0]
the identical string '352 kVA @ 30 C / 320 kVA @ 40 C / 295 kVA @ 50 C' with max. AC output current 254 A — document[2]
'Rated Output Power 320/350 kW' for the SG320HX / SG350HX pair — document[1]
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| identity.product_status | active - listed on the official 2026 sungrowpower.com string-inverter index as 'SG320/350HX (320/350kW)'; datasheet Version 23 is dated 2025-06-17 |
| manufacturer_legal_entity_as_printed | Sungrow Power Supply Co., Ltd. |