Sineng Electric SP-350K-H1
Manufacturer documented GLOBAL verified Sept. 23, 2026
Page 1 of SP-350K-H1 product brochure (https://en.si-neng.com/Public/Uploads/uploadfile/files/20240712/SP350KH1.pdf)
Identity
| category | inverters |
| manufacturer | Sineng Electric |
| model | SP-350K-H1 |
| product_status | active |
| region | GLOBAL |
Electrical
| backup_output |
False
SP-350K-H1 - String Inverter - Sineng Electric
|
| battery_supported |
False
SP-350K-H1 - String Inverter - Sineng Electric
|
| dimensions_w_h_d_mm |
[1350, 735, 350]
SP-350K-H1 - String Inverter - Sineng Electric
|
| eps_backup_power_w | 350.0 |
| euro_efficiency_pct | 97.0 |
| euro_efficiency_percent |
98.8
SP-350K-H1 - String Inverter - Sineng Electric
|
| generator_input |
False
SP-350K-H1 - String Inverter - Sineng Electric
|
| grid_frequency_hz |
[50, 60]
SP-350K-H1 - String Inverter - Sineng Electric
|
| has_internal_pv_input |
True
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_ac_active_power_w | 350.0 |
| max_ac_apparent_power_va | 350.0 |
| max_ac_current_a |
254
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_ac_power_w |
352000
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_efficiency_pct | 97.6 |
| max_efficiency_percent |
99.0
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_input_current_per_mppt_a |
[40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40]
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_pv_voltage_v |
1500
SP-350K-H1 - String Inverter - Sineng Electric
|
| max_short_circuit_current_per_mppt_a | 24.0 |
| mppt_count | 2 |
| mppt_voltage_max_v |
1500
SP-350K-H1 - String Inverter - Sineng Electric
|
| mppt_voltage_min_v |
500
SP-350K-H1 - String Inverter - Sineng Electric
|
| nominal_ac_voltage_v | 230.0 |
| nominal_frequency_hz | 50.0 |
| nominal_grid_voltage_v |
800
SP-350K-H1 - String Inverter - Sineng Electric
|
| number_of_mppt |
12
SP-350K-H1 - String Inverter - Sineng Electric
|
| number_of_pv_inputs |
24
SP-350K-H1 - String Inverter - Sineng Electric
|
| official_product_url |
https://en.si-neng.com/products/pv/string-inverter/20
SP-350K-H1 - String Inverter - Sineng Electric — inventory record source_url
|
| phase_count | 1 |
| rated_ac_power_w | 350.0 |
| rated_input_voltage_v |
1080
SP-350K-H1 - String Inverter - Sineng Electric
|
| smart_load |
False
SP-350K-H1 - String Inverter - Sineng Electric
|
| topology |
Transformerless
SP-350K-H1 - String Inverter - Sineng Electric
|
| transfer_time_ms | 20.0 |
Physical / mechanical
| weight_kg |
140
SP-350K-H1 - String Inverter - Sineng Electric
|
Environment
| ip_rating | IP65 |
| operating_temperature_max_c | 60.0 |
| operating_temperature_min_c | -25.0 |
Interfaces & connectors
| communications |
['PLC', 'RS485 (optional)']
SP-350K-H1 - String Inverter - Sineng Electric
|
| documented_ports | [{'port_role': 'PV_IN', 'port_label_from_manual': 'Max. number of PV strings', 'port_type': 'PV string input', 'direction': 'input', 'electrical_domain': 'DC', 'document': 0, 'page': 'Input (DC)', 'quote': 'Max. number of PV strings | 24(Optional:28/32)', 'quantity': 24}, {'port_role': 'GRID', 'port_label_from_manual': 'Output (AC)', 'port_type': 'AC terminal', 'direction': 'output', 'electrical_domain': 'AC', 'document': 0, 'page': 'Output (AC)', 'quote': 'Rated grid voltage | 800V; Grid voltage range | 640~920V'}, {'port_role': 'RS485', 'port_label_from_manual': 'Communication port', 'port_type': 'RS485 (optional)', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'document': 0, 'page': 'General Data', 'quote': 'Communication port | Standard: PLC, Optional: RS485'}] |
Protection
| ingress_protection |
IP66
SP-350K-H1 - String Inverter - Sineng Electric
|
Warranty & service
| warranty_years | 10 |
Documents
datasheet
SP-350K-H1 product brochure
product_page
SP-350K-H1 - String Inverter - Sineng Electric
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | Sineng's English-language international product page; certificates listed are IEC/CE (IEC 62109, IEC 61727, IEC 61683, IEC 62116). Sineng publishes separate US-market pages on us.si-neng.com that were not used here. |
| withheld:battery_voltage_class | "not_applicable" |