---
title: "Growatt WIT 100K-A vs Growatt WIT 100K-A-US / WIT 100K-AU-US - Inverter Comparison | ComparePV"
description: "Compare Growatt WIT 100K-A vs Growatt WIT 100K-A-US / WIT 100K-AU-US side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/growatt-wit-100k-a/growatt-wit-100k-a-us-wit-100k-au-us"
updated: 2026-01-16
---

# Growatt WIT 100K-A vs Growatt WIT 100K-A-US / WIT 100K-AU-US

5 differences, none of them an advantage

The largest is nominal ac voltage: 80 V apart. 9 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Growatt WIT 100K-A](https://comparepv.com/inverter/growatt-wit-100k-a) | [Growatt WIT 100K-A-US / WIT 100K-AU-US](https://comparepv.com/inverter/growatt-wit-100k-a-us-wit-100k-au-us) |
| Manufacturer | Growatt | Growatt |
| Rated AC power | 100 kW | 100 kW |
| Type | Hybrid | Hybrid |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | WIT 100K-A | WIT 100K-A-US / WIT 100K-AU-US | Difference |
| --- | --- | --- | --- |
| Nominal AC voltage | 400 V | 480 V | 80 V apart |
| Max AC current | 166.7 A | 132.4 A | 34.3 A apart |
| Ingress protection | IP66 | NEMA/IP66 | IP66 vs NEMA/IP66 |
| Battery voltage | 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V | 750-1000 V | 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V vs 750-1000 V |
| Dimensions | 1350x820x510 mm | 1200x820x510 mm | 1350x820x510 mm vs 1200x820x510 mm |


## Every compared parameter


| Parameter | WIT 100K-A | WIT 100K-A-US / WIT 100K-AU-US |
| --- | --- | --- |
| Rated AC power | 100.00 kW | 100.00 kW |
| Max AC power | 100.00 kW | 100.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 480 V |
| Max AC current | 166.7 A | 132.4 A |
| Max PV power | - | - |
| DC/AC ratio | - | - |
| Max DC voltage | 1000 V | - |
| MPPT voltage range | - | - |
| Start voltage | 768 V | - |
| MPP trackers | - | - |
| Strings per tracker | - | - |
| Max input current per tracker | - | - |
| European efficiency | - | - |
| Max efficiency | - | - |
| CEC efficiency | - | - |
| Battery input | Yes | Yes |
| Battery voltage | 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V | 750-1000 V |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 120.0 kg | 120.0 kg |
| Weight per kW | 1.2 kg/kW | 1.2 kg/kW |
| Dimensions | 1350x820x510 mm | 1200x820x510 mm |
| Ingress protection | IP66 | NEMA/IP66 |
| Cooling | forced-air | forced-air |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | - | - |
| Arc fault protection | - | - |
| Integrated DC switch | - | - |
| Warranty | - | 5 yrs |


## Related comparisons

- [Growatt WIT 100K-A vs Ginlong Solis S6-EH3P100K10-NV-YD-H](https://comparepv.com/compare-inverters/growatt-wit-100k-a/ginlong-solis-s6-eh3p100k10-nv-yd-h) - 6 differences, the largest is weight
- [Growatt WIT 100K-A vs Growatt WIT 100K-AU-US](https://comparepv.com/compare-inverters/growatt-wit-100k-a/growatt-wit-100k-au-us) - 8 differences, the largest is max ac power
- [Growatt WIT 100K-A vs Growatt WIT 100K-H-US / WIT 100K-HU-US](https://comparepv.com/compare-inverters/growatt-wit-100k-a/growatt-wit-100k-h-us-wit-100k-hu-us) - 9 differences, the largest is max dc voltage


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Source: https://comparepv.com/compare-inverters/growatt-wit-100k-a/growatt-wit-100k-a-us-wit-100k-au-us

Not in this file, on the page: a written summary generated on request.