Import 3/4/4.6/5kw On Grid Inverter — Buy in Bulk from Supplier in China

Han's Inverter & Grid Technology Co., Ltd. offers a string of single-phase on-grid inverters rated at 3kW, 4kW, 4.6kW and 5kW, designed to convert the direct current produced by photovoltaic arrays into alternating current synchronised with the utility grid. The units employ transformerless topology and maximum power point tracking (MPPT) across a wide input-voltage window, with a listed maximum efficiency that reaches the upper-nineties range typical for modern residential string inverters. The 3kW model suits small rooftop arrays, while the 5kW variant covers most detached-house installations; the 4kW and 4.6kW ratings fill the gap for medium-sized systems where future panel expansion is planned.

The power stage uses industrial-grade IGBT or MOSFET semiconductors with forced-air cooling, and the enclosure carries an IP65 rating, so wall-mounted outdoor installation is standard. A compact footprint keeps the weight below 20 kg for the largest unit, which simplifies one-person mounting on a bracket or fence. Protection layers include anti-islanding detection, residual-current monitoring, DC reverse-polarity blocking, and AC short-circuit shutdown, all of which are mandatory for grid-interactive equipment under IEC 62109 and local utility codes. The MPPT voltage range and startup voltage are set to match 60-cell and 72-cell silicon module strings common in the Chinese and export markets.

Buyers are typically solar EPC contractors, equipment distributors, and project developers serving residential and light-commercial rooftop segments. The inverter communicates through RS485 or optional Wi-Fi for remote production monitoring via a web portal or mobile application. Standard grid codes supported include VDE-AR-N 4105, G98/G99, and AS/NZS 4777, though the exact certificates for each rating must be confirmed with Han's Inverter & Grid Technology Co., Ltd. before shipment. Packaging is individual carton with foam inserts; Incoterms and lead time are not stated in the source data and should be negotiated directly.

Han's Inverter & Grid Technology Co., Ltd. is headquartered at No.2 Building, Han's Laser Industrial Park, Shenzhen 518006, China, placing it within the Pearl River Delta electronics manufacturing cluster. The supplier is listed with an imported tier and a harbor trust classification, which indicates a baseline marketplace screening rather than an premium verification level. The response rate is shown as 0.00 % with an average response time of zero hours, meaning no response data is available; buyers should treat initial contact as unproven and request a direct video call or factory audit before placing a trial order.

The source profile does not state year of establishment, production-floor area, headcount, annual revenue, or named clients, so any claim about scale or experience must be treated as unverified. What the listing does confirm is that the company specialises in inverter and grid technology products under the Han's group umbrella, sharing an address with Han's Laser Industrial Park. Buyers should ask for ISO 9001 and product-level certificates (CE, VDE, G98/G99, AS/NZS 4777) tied to the specific model and rating they intend to purchase, and verify that the certificate holder name matches the legal entity on the sales contract.