PV Hybrid Power (AC/DC-Solar)

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1.5 кВт
1x220

SI23-D3-1R5G-A

brand: Veichi
Series: SI23
Main Power: 1.5 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

2.2 кВт
3x380

SI23-D5-2R2G-A

brand: Veichi
Series: SI23
Main Power: 2.2 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

2.2 кВт
1x220

SI23-D3-2R2G-A

brand: Veichi
Series: SI23
Main Power: 2.2 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

4 кВт
3x380

SI23-D5-004G-A

brand: Veichi
Series: SI23
Main Power: 4.0 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

0.4 кВт
1x220

ATV320U04M2C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.4 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

5.5 кВт
3x380

SI23-D5-5R5G-A

brand: Veichi
Series: SI23
Main Power: 5.5 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

0.4 кВт
3x380

ATV320U04N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.4 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

0.5 кВт
1x220

ATV320U06M2C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.5 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

0.5 кВт
3x380

ATV320U06N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.5 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

3.7 кВт
1x220

SI23-D3-004G-A

brand: Veichi
Series: SI23
Main Power: 3.7 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

0.75 кВт
1x220

ATV320U07M2C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.7 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

0.75 кВт
3x380

ATV320U07N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 0.7 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

1.1 кВт
3x380

ATV320U11N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 1.1 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

1.5 кВт
3x380

ATV320U15N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 1.5 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

1.1 кВт
1x220

ATV320U11M2C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 1.1 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

7.5 кВт
3x380

SI23-D5-7R5G-A

brand: Veichi
Series: SI23
Main Power: 7.5 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

1.5 кВт
1x220

ATV320U15M2C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 1.5 kW
Supply input: 1x220 V
Hybrid Power (AC/DC-Solar): Yes

2.2 кВт
3x380

ATV320U22N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 2.2 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

11 кВт
3x380

SI23-D5-011G-A

brand: Veichi
Series: SI23
Main Power: 11.0 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

3 кВт
3x380

ATV320U30N4C412

brand: Schneider Electric
Series: Altivar 320 Solar
Main Power: 3.0 kW
Supply input: 3x380 V
Hybrid Power (AC/DC-Solar): Yes

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Solar Variable Frequency Drives for Pumps — Hybrid AC/DC Power

A Solar VFD is a specialized frequency converter that powers pump motors directly from photovoltaic panels (DC input) or from the electrical grid (AC input). The built-in MPPT (Maximum Power Point Tracking) algorithm automatically finds the optimal operating point of solar panels to extract maximum energy throughout the day.

The chastotnik.ua VFD catalog features two solar pump inverter series: Veichi SI23 (1.5–200 kW) and Schneider Electric Altivar 320 Solar (0.37–15 kW). Both support dual power: PV panels + grid with automatic switchover.

How to Choose a Solar VFD

Model	Power	Current, A	Supply	Application
ATV320U07N4C412	0.75 kW	2.3	3×380V	Residential water supply
SI23-D5-004G-A	4 kW	10	3×380V	Irrigation, drip systems
ATV320U55N4C412	5.5 kW	14.3	3×380V	Farm water supply
SI23-D5-015G-A	15 kW	32	3×380V	Industrial irrigation
SI23-D5-030G-A	30 kW	60	3×380V	Agricultural complexes

Solar VFD Manufacturers

Veichi — SI23 series: 1.5–200 kW, MPPT 99.9%, built-in PLC, IoT monitoring. SI23 review →
Schneider Electric — Altivar 320 Solar: 0.37–15 kW, STO/SLS/SS1 safety, Modbus + CANopen. Altivar 320 Solar review →

Full comparison — in our complete solar pump VFD guide.

Solar VFDs by Specifications

Warranty & Support

24-month manufacturer warranty. Delivery across Ukraine. Free technical consultation for PV array and pump system sizing.

Frequently Asked Questions

What is a solar pump VFD?

A specialized variable frequency drive with DC input for direct connection to solar panels and a built-in MPPT algorithm. It powers pump motors directly from PV panels or from the grid (hybrid AC/DC mode), switching automatically between sources.

Do I need batteries for a solar pump?

No. Both Veichi SI23 and Schneider Altivar 320 Solar operate in direct drive mode — solar energy is immediately converted to motor rotation. No batteries needed, significantly reducing system cost and maintenance.

How many solar panels do I need for a pump?

Recommended PV array capacity is 1.3–1.5× the VFD's rated power. For example, a 4 kW inverter needs a 5.2–6 kW array (12–14 panels at 450 W each).

Does a solar pump work in cloudy weather and at night?

In cloudy weather, the pump runs at reduced power — the MPPT algorithm extracts maximum from available irradiance. At night, both series automatically switch to grid power (hybrid mode).

What's the difference between Veichi SI23 and Schneider Altivar 320 Solar?

Veichi SI23 — up to 200 kW, built-in PLC, IoT monitoring via GPRS/WiFi, ideal for large agricultural projects. Schneider Altivar 320 Solar — up to 15 kW, certified STO/SLS/SS1 safety, Modbus+CANopen, ideal for critical water supply.