---
title: "Growatt MAX 253KTL3-X HV vs Sungrow SG250HX-20 - Inverter Comparison | ComparePV"
description: "Compare Growatt MAX 253KTL3-X HV vs Sungrow SG250HX-20 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/growatt-max-253ktl3-x-hv/sungrow-sg250hx-20"
updated: 2026-01-16
---

# Growatt MAX 253KTL3-X HV vs Sungrow SG250HX-20

SG250HX-20 leads on the differences that matter

The largest is rated ac power: 3.00 kW apart. 10 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Growatt MAX 253KTL3-X HV](https://comparepv.com/inverter/growatt-max-253ktl3-x-hv) | [Sungrow SG250HX-20](https://comparepv.com/inverter/sungrow-sg250hx-20) |
| Manufacturer | Growatt | Sungrow |
| Rated AC power | 253 kW | 250 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | MAX 253KTL3-X HV | SG250HX-20 | Difference |
| --- | --- | --- | --- |
| Rated AC power | 253.00 kW | 250.00 kW | 3.00 kW apart |
| Max input current per tracker | 30.0 A | 65.0 A | +35.0 A for SG250HX-20 |
| Max AC power | 253.00 kW | 250.00 kW | 3.00 kW apart |
| Weight | 109.0 kg | 106.0 kg | -3.0 kg for SG250HX-20 |
| European efficiency | 98.5 % | 98.8 % | +0.3 pp for SG250HX-20 |
| Max AC current | 182.6 A | 198.5 A | 15.9 A apart |
| Start voltage | 500 V | 550 V | -50 V for MAX 253KTL3-X HV |
| Strings per tracker | 2 | 4 | 2 strings apart |
| Dimensions | 675x1070x340 mm | 779x1148x371 mm | 675x1070x340 mm vs 779x1148x371 mm |


## Every compared parameter


| Parameter | MAX 253KTL3-X HV | SG250HX-20 |
| --- | --- | --- |
| Rated AC power | 253.00 kW | 250.00 kW |
| Max AC power | 253.00 kW | 250.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 800 V | 800 V |
| Max AC current | 182.6 A | 198.5 A |
| Max PV power | - | - |
| DC/AC ratio | - | - |
| Max DC voltage | 1500 V | 1500 V |
| MPPT voltage range | 500-1500 V | 500-1500 V |
| Start voltage | 500 V | 550 V |
| MPP trackers | - | 6 |
| Strings per tracker | 2 | 4 |
| Max input current per tracker | 30.0 A | 65.0 A |
| European efficiency | 98.5 % | 98.8 % |
| Max efficiency | 99.0 % | 99.0 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 109.0 kg | 106.0 kg |
| Weight per kW | 0.4 kg/kW | 0.4 kg/kW |
| Dimensions | 675x1070x340 mm | 779x1148x371 mm |
| Ingress protection | IP66 | IP66 |
| Cooling | forced-air | forced-air |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | - |
| Ethernet | - | - |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | 5 yrs | - |


## Related comparisons

- [Growatt MAX 253KTL3-X HV vs Solis-255K-EHV-5G-PLUS](https://comparepv.com/compare-inverters/growatt-max-253ktl3-x-hv/ginlong-solis-solis-255k-ehv-5g-plus) - 7 differences, the largest is rated ac power
- [Growatt MAX 253KTL3-X HV vs SOFAR 255KTL-HV](https://comparepv.com/compare-inverters/growatt-max-253ktl3-x-hv/sofar-solar-sofar-255ktl-hv) - 7 differences, the largest is rated ac power
- [Growatt MAX 253KTL3-X HV vs SOFAR 250KTLX0](https://comparepv.com/compare-inverters/growatt-max-253ktl3-x-hv/sofar-solar-sofar-250ktlx0) - 9 differences, the largest is rated ac power
- [Sungrow SG250HX-20 vs Growatt MAX 250KTL3-X HV](https://comparepv.com/compare-inverters/sungrow-sg250hx-20/growatt-max-250ktl3-x-hv) - 6 differences, the largest is max input current per tracker


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Source: https://comparepv.com/compare-inverters/growatt-max-253ktl3-x-hv/sungrow-sg250hx-20

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