---
title: "Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-HU-US - Inverter Comparison | ComparePV"
description: "Compare Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-HU-US side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/growatt-wit-63k-h-us-wit-63k-hu-us/growatt-wit-63k-hu-us"
updated: 2026-01-16
---

# Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-HU-US

H-US / WIT 63K-HU-US leads on the differences that matter

The largest is warranty: 5 yrs longer. 15 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Growatt WIT 63K-H-US / WIT 63K-HU-US](https://comparepv.com/inverter/growatt-wit-63k-h-us-wit-63k-hu-us) | [Growatt WIT 63K-HU-US](https://comparepv.com/inverter/growatt-wit-63k-hu-us) |
| Manufacturer | Growatt | Growatt |
| Rated AC power | 63 kW | 63 kW |
| Type | Hybrid | Hybrid |


## Where they differ

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


| Parameter | H-US / WIT 63K-HU-US | HU-US | Difference |
| --- | --- | --- | --- |
| Warranty | 10 yrs | 5 yrs | +5 yrs for H-US / WIT 63K-HU-US |
| Max AC power | 63.00 kW | 69.30 kW | 6.30 kW apart |
| Weight | 60.0 kg | 153.0 kg | -93.0 kg for H-US / WIT 63K-HU-US |
| Weight per kW | 1.0 kg/kW | 2.4 kg/kW | -1.5 kg/kW for H-US / WIT 63K-HU-US |
| Max efficiency | 98.0 % | 98.2 % | +0.2 pp for HU-US |
| Ingress protection | NEMA 4X (IP66) | IP66/NEMA 4X | NEMA 4X (IP66) vs IP66/NEMA 4X |
| Battery voltage | 750-1000V | 750-1000V for 3P3W / 820-1000V for 3P4W | 750-1000V vs 750-1000V for 3P3W / 820-1000V for 3P4W |
| Dimensions | 820x760x228 mm | 1350x850x510 mm | 820x760x228 mm vs 1350x850x510 mm |


## Every compared parameter


| Parameter | H-US / WIT 63K-HU-US | HU-US |
| --- | --- | --- |
| Rated AC power | 63.00 kW | 63.00 kW |
| Max AC power | 63.00 kW | 69.30 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 480 V | 480 V |
| Max AC current | 83.4 A | 83.4 A |
| Max PV power | 124.80 kW | 124.80 kW |
| DC/AC ratio | 1.98 | 1.98 |
| Max DC voltage | 1100 V | 1100 V |
| MPPT voltage range | 180-800 V | 180-800 V |
| Start voltage | 195 V | 195 V |
| MPP trackers | 10 | - |
| Strings per tracker | 2 | 2 |
| Max input current per tracker | 32.0 A | 32.0 A |
| European efficiency | - | - |
| Max efficiency | 98.0 % | 98.2 % |
| CEC efficiency | - | - |
| Battery input | Yes | Yes |
| Battery voltage | 750-1000V | 750-1000V for 3P3W / 820-1000V for 3P4W |
| Max charge current | 151 A | - |
| Backup power | 100.0 kW | - |
| Weight | 60.0 kg | 153.0 kg |
| Weight per kW | 1.0 kg/kW | 2.4 kg/kW |
| Dimensions | 820x760x228 mm | 1350x850x510 mm |
| Ingress protection | NEMA 4X (IP66) | IP66/NEMA 4X |
| Cooling | forced-air | forced-air |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | - | - |
| Arc fault protection | Yes | - |
| Integrated DC switch | - | - |
| Warranty | 10 yrs | 5 yrs |


## Related comparisons

- [Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-A-US / WIT 63K-AU-US](https://comparepv.com/compare-inverters/growatt-wit-63k-h-us-wit-63k-hu-us/growatt-wit-63k-a-us-wit-63k-au-us) - 6 differences, the largest is warranty
- [Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-AU-US](https://comparepv.com/compare-inverters/growatt-wit-63k-h-us-wit-63k-hu-us/growatt-wit-63k-au-us) - 7 differences, the largest is max ac power
- [Growatt WIT 63K-H-US / WIT 63K-HU-US vs Growatt WIT 63K-A](https://comparepv.com/compare-inverters/growatt-wit-63k-h-us-wit-63k-hu-us/growatt-wit-63k-a) - 9 differences, the largest is max dc voltage


---

Source: https://comparepv.com/compare-inverters/growatt-wit-63k-h-us-wit-63k-hu-us/growatt-wit-63k-hu-us

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