Voltronic Power Axpert VM III 3KW Solar Inverter

Voltronic Axpert VM III 3KW Solar Inverter

The Axpert VM III 3KW is a solar inverter rated 3KW. Every figure on this page is read from the manufacturer's manual for the Axpert VM III series.

Net Weight, kg: 8.5
Dimension (D*W*H), mm: 115 x
Operating Temperature Range: -10°C to 50°C

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Full Specifications Download datasheet (PDF)

About the Voltronic Axpert VM III 3KW Solar Inverter

The Axpert VM III 3KW is a solar inverter rated 3KW. Every figure on this page is read from the manufacturer's manual for the Axpert VM III series.

Specifications last updated 17 August 2026

Voltronic Axpert VM III 3KW Solar Inverter full specifications

Electrical

No Load Power Consumption	<67W @48V
Nominal Input Voltage	230Vac
Low Loss Voltage	176Vac±7V
Low Loss Return Voltage	186Vac±7V
High Loss Voltage	280Vac±7V
High Loss Return Voltage	270Vac±7V
Max AC Input Voltage	300Vac
Nominal Input Frequency	50Hz/60Hz (Auto detection)
Low Loss Frequency	46(56)±1Hz
Low Loss Return Frequency	46.5(57)+1Hz
High Loss Frequency	54(64)±1Hz
High Loss Return Frequency	53(63)±1Hz
Power Factor	>0.98
Output Short Circuit Protection	Line mode: Circuit Breaker Battery mode: Electronic Circuits
Efficiency (Line Mode)	93% (Peak Efficiency)
Transfer Time	Line mode →Battery mode Oms Line mode / Battery mode Bypass mode 4ms
Communication	RS232 and USB
Peak Efficiency	90%
Surge Capacity	2* rated power for 5 seconds
Operating Range	40Vdc -66Vdc
Max. PV Power	6000W
Max. PV Array Open Circuit Voltage	145 VDC
Nominal Output Current	21.7A
Maximum Charging Current (from PV)	120A
Maximum Charging Current	180A
Feed-in Grid Frequency Range	49~51Hz @India 47.5~51.5Hz @Germany
Feed-in Grid Voltage Range	195.5~253 VAC @India 184 ~ 264.5 VAC @Germany

Mechanical

Net Weight, kg	8.5
Dimension (DWH), mm	115 x

Environmental

Operating Temperature Range	-10°C to 50°C
Storage temperature	-15°C~ 60°C
Relative Humidity	5% to 95%
Operating Temperature	0 to 50°C

Frequently Asked Questions

The Axpert VM III 3KW takes up to 6000W of PV array. The string has to stay below 145 VDC open-circuit — that ceiling is reached on a cold bright morning, not at noon.

Over RS232 and USB. Those are the ports this unit publishes, and any monitoring or logging you plan has to go through one of them.

0 to 50°C. In a Gulf summer that is the figure that decides whether the unit goes in a ventilated room or on an unshaded wall.

Voltronic Axpert VM III 3KW Solar Inverter

About the Voltronic Axpert VM III 3KW Solar Inverter