# Growatt MAX 320K X

Type: solar inverter
Manufacturer: Growatt
URL: https://inverterdata.com/en/growatt/growatt-max-320k-x/
Manufacturer source: https://www.growatt.com/products/max-320k-x
Database: InverterData (inverterdata.com)
License: free to quote with attribution to inverterdata.com

## Overview

Built for large-scale commercial and utility solar installations, this ground-mounted photovoltaic inverter delivers exceptional performance with its massive 320kW nominal AC power output. The advanced design incorporates 30 independent MPPT channels, each capable of handling up to 80A of DC input current, providing superior flexibility for complex solar array configurations and optimal energy harvesting across varying conditions.

Engineered for reliability in demanding outdoor environments, the unit achieves an impressive maximum efficiency of 99.03%, minimizing energy losses and maximizing return on investment. Its robust IP66-rated enclosure ensures complete protection against dust ingress and powerful water jets, making it suitable for harsh weather conditions. This Chinese-manufactured inverter represents Growatt's commitment to delivering enterprise-grade solar solutions that combine cutting-edge technology with proven durability for mission-critical renewable energy projects.

## Specifications

| Specification | Value |
| --- | --- |
| Nominal AC Power | 320000 W |
| Maximum Efficiency | 99.03 % |
| Number of MPPT Channels | 30 |
| Maximum DC Input Current per MPPT | 80 A |
| Enclosure Protection Rating | IP66 |
| Inverter Type | 地面光伏逆变器 |

Not published by the manufacturer: Maximum AC Power, European Efficiency, MPPT Voltage Range, Maximum DC Input Voltage, AC Output Voltage, AC Output Frequency, Output Wave Type, Total Harmonic Distortion (THD), Weight, Operating Temperature Range, Number of Phases.

## Frequently asked questions

### What kind of plant is the Growatt MAX 320K X designed for?

The Growatt MAX 320K X is rated at 320000 W of nominal AC power, which places it among utility-scale and heavy industrial inverters rather than rooftop equipment. A single MAX 320K X covers a sub-array of that size, so plants get laid out as repeated blocks of one inverter with its combiners and cabling.

### How many MPPT trackers does the Growatt MAX 320K X have?

The Growatt MAX 320K X offers 30 MPPT channels, a high count even for a 320000 W inverter. Thirty independent trackers let a large field be divided into many small sub-arrays, which helps on uneven terrain where rows end up facing slightly different directions or where shading reaches different zones at different hours.

### How much current does each MPPT input of the Growatt MAX 320K X take?

Each MPPT channel of the Growatt MAX 320K X accepts up to 80 A of DC input current, a high figure that allows several strings to be paralleled onto one tracker. That headroom suits present-day high-current modules, but the string protection and the DC cable sizing on every input have to be dimensioned for 80 A.

### How efficient is the Growatt MAX 320K X?

The Growatt MAX 320K X is quoted at 99.03 percent maximum efficiency, so under one percent of the DC energy is lost at the best operating point. On a 320000 W inverter that small percentage still amounts to a few kilowatts of heat that the enclosure and its cooling have to shed at full output.

### Is the Growatt MAX 320K X protected enough for outdoor mounting?

The Growatt MAX 320K X carries an IP66 rating, so its enclosure is dust-tight and protected against strong water jets. That is the level expected of an inverter bolted to a rack out in the field, facing blown dust, driving rain and module-cleaning water without a building of any kind around it.

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