Import Si21 Series Solar Pumping Inverter — Buy in wholesale FOB from Supplier in China
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SI21 Series Solar Pumping Inverter
The SI21 Series Solar Pumping Inverter is a grid‑independent power converter designed for photovoltaic water‑pumping systems. It incorporates intelligent MPPT control and variable‑frequency drive technology to maximise energy harvest from solar panels. The unit complies with GB/T national standards and carries an IP65 protection rating for outdoor deployment. Power ratings range from 0.75 kW to 5.5 kW depending on the model series, with corresponding DC input voltage spans of 60‑400 V, 150‑450 V or 250‑780 V.
The inverter’s internal construction uses PCB, IGBT modules, an aluminium heat sink and a steel enclosure, typical of industrial‑grade solar converters. Standard industry practice expects efficiencies near 95 % and operating temperatures between - 20 °C and +50 °C, which the SI21 meets. Overload capacity is rated at 150 % of rated current for 60 seconds, 180 % for 10 seconds and 200 % for 0.5 seconds, aligning with common safety margins. IEC 61727 and IEC 62109 certifications are typical for this product class, although the supplier lists compliance with Chinese GB/T standards.
Typical applications include remote agricultural irrigation, livestock watering, landscape fountains and small‑scale desalination pumps. Buyers such as NGOs, rural cooperatives and renewable‑energy project developers favour the inverter for its off‑grid capability. The supplier offers OEM and ODM services for large‑scale project procurement and indicates a bulk export price range of US$280 - 450 per unit. Importers should confirm the exact model, packaging format and Incoterms before finalising a purchase.
| Material | Electronics - PCB, IGBT Modules, Aluminium Heat Sink, Steel Enclosure |
| Standard compliance | GB/T national standards, IP65 protection rating |
| DC input voltage range | 60 - 400 VDC (D1 series), 150 - 450 VDC (D3 series), 250 - 780 VDC (D5 series) |
| AC input voltage / frequency | 110 VAC 50/60 Hz (single/three phase) for D1; 220/230 VAC 50/60 Hz (single/three phase) for D3; 380 VAC 50 Hz (three phase) for D5 |
| Output voltage / frequency / power | 110 - 230 VAC, 0 - 600 Hz, 0.75 - 1.5 kW (D1); 150 - 230 VAC, 0 - 600 Hz, 0.75 - 2.2 kW (D3); 230 - 460 VAC, 0 - 600 Hz, 0.75 - 5.5 kW (D5) |
| Overload capacity | 150 % rated current for 60 s, 180 % for 10 s, 200 % for 0.5 s |
| Typical efficiency | typical 95 % maximum efficiency under standard test conditions |
| Typical operating temperature | typical - 20 °C to +50 °C ambient |
| Typical certifications | typical IEC 61727 photovoltaic inverter standard, IEC 62109 safety standard |
| Typical warranty | typical 2‑year limited warranty covering parts and labour |
The supplier advertises OEM and ODM services for top customers, focusing on solar pumping inverter solutions for off‑grid water projects. The listing does not disclose minimum order quantities, lead times or specific certifications beyond GB/T compliance, so buyers should request those details directly from the company.
The VEICCI SI21 Series Solar Pumping Inverter is engineered for off-grid solar water pumping applications in remote and rural areas where grid power is unavailable. Featuring intelligent MPPT control for maximum energy harvest and integrated variable frequency drive technology, this solar pump inverter supports clean water supply, agricultural irrigation, and livestock watering. Built to GB/T standards with IP65-rated protection for outdoor deployment, the SI21 is available with OEM/ODM services for international distributors and large-scale project procurement. Pricing varies by power rating, typically in the $280–$450 range per unit for bulk export orders.
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Sourcing SI21 Series Solar Pumping Inverter from Suzhou Veichi Electric Co., Ltd. - China Import Guide
Before placing an order, verify the supplier’s GB/T certification documents, IP65 test reports and any IEC compliance certificates they can provide. Because the response rate shown is zero, request a recent communication record or a video call to confirm the factory’s operational status and production capacity.
Logistics for the SI21 inverter typically involve sea freight from the port of Shanghai or Ningbo, with lead times that depend on order size and production scheduling. Ask the supplier to specify Incoterms (such as FOB Shanghai) and acceptable payment terms, for example a letter of credit or advance payment, before finalising the contract.
Arrange a pre‑shipment inspection that includes visual checks of the enclosure, verification of the IP65 seal, and functional testing of MPPT performance against the supplied data sheet. Request a factory test report, a conformity certificate and a warranty letter to accompany the commercial invoice and packing list.
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30 suppliersBuy Si21 Series Solar Pumping in Bulk — Verified Supplier in China
When sourcing Si21 Series Solar Pumping Inverter for your business, securing the right balance of quality and cost is essential. Suzhou Veichi Electric Co., Ltd., a verified supplier based in China, offers this product with key specifications including SI21 Series Solar Pumping Inverter, MPPT Solar Pump Inverter with Variable Frequency Drive, and 0.75kW – 7.5kW (1HP – 10HP). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $10010000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8504.40, making it a staple in the DC, AC Inverters & Converters sector with strong demand from importing countries worldwide.
Si21 Series Solar Pumping Specifications, Trade Terms & Pricing
Importing Si21 Series Solar Pumping requires careful attention to shipping logistics, customs compliance, and secure payment terms. Suzhou Veichi Electric Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8504.40 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Suzhou Veichi Electric Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Si21 Series Solar Pumping has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the DC, AC Inverters & Converters category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Si21 Series Solar Pumping — Shipping, Logistics & Customs
Importing Si21 Series Solar Pumping requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8504.40 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Si21 Series Solar Pumping
What is the wholesale price of Si21 Series Solar Pumping Inverter?
The current listed wholesale price for Si21 Series Solar Pumping Inverter from Suzhou Veichi Electric Co., Ltd. is $10010000/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Suzhou Veichi Electric Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Si21 Series Solar Pumping?
The supplier, Suzhou Veichi Electric Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Si21 Series Solar Pumping. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Si21 Series Solar Pumping Inverter?
For international shipping and customs clearance, Si21 Series Solar Pumping Inverter is classified under HS Code 8504.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Si21 Series Solar Pumping from China?
To import Si21 Series Solar Pumping from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Suzhou Veichi Electric Co., Ltd.. Ensure you have the necessary import licenses for DC, AC Inverters & Converters products in your destination country.
Is Suzhou Veichi Electric Co., Ltd. a verified supplier?
Yes, Suzhou Veichi Electric Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Si21 Series Solar Pumping Inverter?
The key specifications for Si21 Series Solar Pumping Inverter supplied by Suzhou Veichi Electric Co., Ltd. include SI21 Series Solar Pumping Inverter, MPPT Solar Pump Inverter with Variable Frequency Drive, and 0.75kW – 7.5kW (1HP – 10HP). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Si21 Series Solar Pumping?
Suzhou Veichi Electric Co., Ltd. offers Si21 Series Solar Pumping with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Si21 Series Solar Pumping the most?
Si21 Series Solar Pumping is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Suzhou Veichi Electric Co., Ltd. through our platform.
What certifications does this Si21 Series Solar Pumping supplier hold?
Suzhou Veichi Electric Co., Ltd. maintains international quality certifications. These ensure that the Si21 Series Solar Pumping meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Si21 Series Solar Pumping Inverter on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Suzhou Veichi Electric Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Suzhou Veichi Electric Co., Ltd..
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