---
title: "SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6) vs Sungrow SG3.6RS - Inverter Comparison | ComparePV"
description: "Compare SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6) vs Sungrow SG3.6RS side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/sma-solar-sb3-6-1av-41-sunny-boy-3-6/sungrow-sg3-6rs"
updated: 2026-01-16
---

# SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6) vs Sungrow SG3.6RS

SG3.6RS leads on the differences that matter

The largest is european efficiency: 0.5 pp more efficient. 15 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6)](https://comparepv.com/inverter/sma-solar-sb3-6-1av-41-sunny-boy-3-6) | [Sungrow SG3.6RS](https://comparepv.com/inverter/sungrow-sg3-6rs) |
| Manufacturer | SMA Solar | Sungrow |
| Rated AC power | 3.68 kW | 3.68 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | SB3.6-1AV-41 (Sunny Boy 3.6) | SG3.6RS | Difference |
| --- | --- | --- | --- |
| European efficiency | 96.5 % | 97.0 % | +0.5 pp for SG3.6RS |
| Max efficiency | 97.0 % | 97.9 % | +0.9 pp for SG3.6RS |
| Weight | 17.5 kg | 10.0 kg | -7.5 kg for SG3.6RS |
| Weight per kW | 4.8 kg/kW | 2.7 kg/kW | -2.0 kg/kW for SG3.6RS |
| Max input current per tracker | 15.0 A | 16.0 A | +1.0 A for SG3.6RS |
| Start voltage | 125 V | 50 V | -75 V for SG3.6RS |
| MPPT voltage range | 110-500 V | 40-560 V | 110-500 V vs 40-560 V |
| Max PV power | 5.50 kW | 5.40 kW | 0.10 kW apart |
| Strings per tracker | 2 | 1 | 1 string apart |
| Dimensions | 470x435x176 mm | 270x410x150 mm | 470x435x176 mm vs 270x410x150 mm |


## Every compared parameter


| Parameter | SB3.6-1AV-41 (Sunny Boy 3.6) | SG3.6RS |
| --- | --- | --- |
| Rated AC power | 3.68 kW | 3.68 kW |
| Max AC power | 3.68 kW | 3.68 kW |
| Grid connection | Single-phase | Single-phase |
| Nominal AC voltage | 230 V | 230 V |
| Max AC current | 16.0 A | 16.0 A |
| Max PV power | 5.50 kW | 5.40 kW |
| DC/AC ratio | 1.50 | 1.47 |
| Max DC voltage | 600 V | 600 V |
| MPPT voltage range | 110-500 V | 40-560 V |
| Start voltage | 125 V | 50 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | 2 | 1 |
| Max input current per tracker | 15.0 A | 16.0 A |
| European efficiency | 96.5 % | 97.0 % |
| Max efficiency | 97.0 % | 97.9 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 17.5 kg | 10.0 kg |
| Weight per kW | 4.8 kg/kW | 2.7 kg/kW |
| Dimensions | 470x435x176 mm | 270x410x150 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | natural | natural |
| Noise | 25 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | Yes |
| Arc fault protection | Yes | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | 5 yrs | - |


## Related comparisons

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- [SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6) vs SolarEdge SE3680H (HD‑Wave, single phase)](https://comparepv.com/compare-inverters/sma-solar-sb3-6-1av-41-sunny-boy-3-6/solaredge-solaredge-se3680h-hd-wave-single-phase) - 9 differences, the largest is european efficiency
- [SMA Solar SB3.6-1AV-41 (Sunny Boy 3.6) vs Fronius Primo 3.6-1](https://comparepv.com/compare-inverters/sma-solar-sb3-6-1av-41-sunny-boy-3-6/fronius-international-fronius-primo-3-6-1) - 11 differences, the largest is max dc voltage


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Source: https://comparepv.com/compare-inverters/sma-solar-sb3-6-1av-41-sunny-boy-3-6/sungrow-sg3-6rs

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