SOL IA-S4 3.5kW 5kW Off-Grid Solar Inverter 48V DC Pure Sine Wave Max PV 500VDC Support 9 Units Parallel Work With/Without Battery For Home Off-Grid Solar System

Multi-Source Complementary Power Supply

PV power and grid power jointly supply loads when solar generation is insufficient, ensuring uninterrupted power for household appliances.

Customizable Charge & Discharge Time Schedule

Users can freely set the charging and discharging period of the inverter to optimize solar self-consumption efficiency.

Expandable Parallel Connection Design

Supports up to 9 inverters connected in parallel to achieve a total output of 45kW, meeting high-power off-grid demand.

Max PV Input Voltage 500VDC

Wide MPPT operating range of 120–450VDC, compatible with most mainstream high-voltage solar panels on the market.

Configurable Input Priority Mode

Switchable priority between solar PV or utility grid to match different regional power usage habits.

Dual Working Modes With/Without Battery

Can operate normally with lithium battery, lead-acid battery or run directly without energy storage battery.

Built-In Efficient MPPT Solar Charger

3.5kW model with 80A solar charging current, 5kW model with 100A solar charging current, fast solar energy storage.

Pure Sine Wave AC Output

Stable 230V 50/60Hz pure sine wave current, safe for sensitive household electrical equipment.

Q1: Can I get some samples for test?

A: Yes, sample order is available for quality check and market test .

Q2: Do you accept OEM/ODM ?

A:Yes, we accept OEM/ODM with your authorization.

Q3: What is your typical delivery timeline?

A: For standard off-the-shelf products, we offer a delivery window of 5-10 business days from order confirmation. For bulk orders or customized OEM/ODM projects, delivery schedules are determined based on production capacity and customization requirements. Our sales team will provide a detailed timeline after evaluating your specific needs.

Q4: What is the standard of package?

A: We have our own design carton with five layers corrugated material; if you have any other special requirement of package, we also support customized service.

Q5: What’s your payment terms?

A: We accept T/T, L/C, WEST UNION, ALI TRADE ASSURANCE, cash.

Q6: What’s your warranty time?

A: We offer 12 months warranty service, life time technique support.

Q7: How does your factory implement quality control?

A: Quality is the cornerstone of our brand. We operate a dedicated quality assurance department that oversees every stage of production, from component sourcing to final delivery. Each product undergoes a minimum of seven rigorous quality inspection protocols before shipment, ensuring compliance with international standards and customer specifications.

Q8: How can I trust your company?

A: With over 20 years of specialized experience in inverter manufacturing, Minvon has established a robust quality management system certified to ISO 9001, ISO 14001, and ISO 45001 standards. Our products also hold CE, CCC, and RoHS certifications, ensuring compliance with international regulatory requirements. We can provide third-party assessment reports and factory audit documentation upon request to demonstrate our commitment to transparency and reliability.