---
title: "SolarEdge TerraMax Inverter SE330K vs Sungrow SG333HX - Inverter Comparison | ComparePV"
description: "Compare SolarEdge TerraMax Inverter SE330K vs Sungrow SG333HX side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/solaredge-solaredge-terramax-inverter-se330k/sungrow-sg333hx"
updated: 2026-01-16
---

# SolarEdge TerraMax Inverter SE330K vs Sungrow SG333HX

SG333HX leads on the differences that matter

The largest is rated ac power: 3.00 kW apart. 9 of 15 comparable parameters are identical, with 17 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [SolarEdge TerraMax Inverter SE330K](https://comparepv.com/inverter/solaredge-solaredge-terramax-inverter-se330k) | [Sungrow SG333HX](https://comparepv.com/inverter/sungrow-sg333hx) |
| Manufacturer | SolarEdge | Sungrow |
| Rated AC power | 330 kW | 333 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | SolarEdge TerraMax Inverter SE330K | SG333HX | Difference |
| --- | --- | --- | --- |
| Rated AC power | 330.00 kW | 333.00 kW | 3.00 kW apart |
| Max AC power | 330.00 kW | 333.00 kW | 3.00 kW apart |
| Weight | 175.0 kg | 116.0 kg | -59.0 kg for SG333HX |
| Nominal AC voltage | 690 V | 800 V | 110 V apart |
| Max AC current | 276.1 A | 240.5 A | 35.6 A apart |
| Dimensions | 914x1090x416 mm | 870x1136x361 mm | 914x1090x416 mm vs 870x1136x361 mm |


## Every compared parameter


| Parameter | SolarEdge TerraMax Inverter SE330K | SG333HX |
| --- | --- | --- |
| Rated AC power | 330.00 kW | 333.00 kW |
| Max AC power | 330.00 kW | 333.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 690 V | 800 V |
| Max AC current | 276.1 A | 240.5 A |
| Max PV power | 660.00 kW | - |
| DC/AC ratio | 2.00 | - |
| Max DC voltage | 1500 V | 1500 V |
| MPPT voltage range | - | 500-1500 V |
| Start voltage | - | 550 V |
| MPP trackers | - | 12 |
| Strings per tracker | - | 2 |
| Max input current per tracker | - | 40.0 A |
| European efficiency | 98.8 % | 98.8 % |
| Max efficiency | 99.2 % | 99.0 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 175.0 kg | 116.0 kg |
| Weight per kW | 0.5 kg/kW | 0.3 kg/kW |
| Dimensions | 914x1090x416 mm | 870x1136x361 mm |
| Ingress protection | IP66 | IP66 |
| Cooling | forced-air | forced-air |
| Noise | 72 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | - |
| Ethernet | Yes | - |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | 5 yrs | - |


## Related comparisons

- [SolarEdge TerraMax Inverter SE330K vs SOFAR 330KTLX0](https://comparepv.com/compare-inverters/solaredge-solaredge-terramax-inverter-se330k/sofar-solar-sofar-330ktlx0) - 4 differences, the largest is weight
- [SolarEdge TerraMax Inverter SE330K vs Growatt MAX 333K-X](https://comparepv.com/compare-inverters/solaredge-solaredge-terramax-inverter-se330k/growatt-max-333k-x) - 9 differences, the largest is rated ac power
- [SolarEdge TerraMax Inverter SE330K vs Growatt MAX 320K-X](https://comparepv.com/compare-inverters/solaredge-solaredge-terramax-inverter-se330k/growatt-max-320k-x) - 9 differences, the largest is rated ac power


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Source: https://comparepv.com/compare-inverters/solaredge-solaredge-terramax-inverter-se330k/sungrow-sg333hx

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