Sungrow SG320HX
Official manufacturer EU / GL verified Sept. 3, 2026
Identity
| category | inverters |
| ean | UNKNOWN |
| generation | HX (1500 Vdc utility string platform) |
| grid_type | 3 / PE, 800 V (no neutral) - designed for an MV step-up transformer |
| hardware_revision | UNKNOWN |
| legacy_name | UNKNOWN |
| manufacturer | Sungrow |
| manufacturer_legal_entity | Sungrow Power Supply Co., Ltd. |
| market_version | UNKNOWN |
| model | SG320HX |
| 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)'; a separate 'SG320/350HX-20' listing also exists, which is a different generation |
| 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 | Do NOT collapse with SG320HX-20 (a separate listed product) or with the US-market SG350HX-US / SG200HX-US. The MPPT count is order-configurable: 12 MPPTs at 40 A each, or optionally 16 MPPTs at 30 A each - these are different DC machines and should be treated as configuration variants. |
Electrical
| dc_ac_ratio | UNKNOWN |
| european_efficiency_pct | 98.8 |
| grid_frequency_range | 45 Hz - 55 Hz / 57 Hz - 63 Hz |
| max_ac_power_w | 352000 |
| max_apparent_power_va | 352000 |
| 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 | UNKNOWN |
| max_output_current_a | 254 |
| 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); the 16-MPPT option changes this - not stated in the fetched extraction |
| oversizing_guidance | UNKNOWN |
| power_factor_range | > 0.99 default; 0.8 leading - 0.8 lagging |
| rated_ac_power_w | 352 kVA @ 30 C / 320 kVA @ 40 C / 295 kVA @ 50 C (temperature-derated) |
| rated_output_current_a | UNKNOWN |
| recommended_pv_power_w | UNKNOWN |
| startup_voltage_v | 550 |
| string_rules | 12 independent MPPTs with 2 strings each at 40 A per MPPT; optionally 16 MPPTs at 30 A per MPPT |
| 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 (max. 400 mm2) |
| 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', 'EN 50549-1/2', 'UNE 206007-1:2013', 'UTE C15-712-1:2013'] |
Warranty & service
| extension_options | UNKNOWN |
| note | no warranty statement appears in the fetched datasheet extraction |
| standard_warranty | UNKNOWN |
Documents
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)'; a separate 'SG320/350HX-20' listing also exists, which is a different generation |
| manufacturer_legal_entity_as_printed | Sungrow Power Supply Co., Ltd. |