GoodWe ET LV Series Hybrid Inverter (48V-Three Phase)

The GoodWe ET LV series brings three phase hybrid power to homes and small businesses that prefer 48V low voltage batteries. A three phase low voltage inverter is hard to find, and this series covers 5kW, 6kW, 8kW, 10kW, 12kW, 15kW and 20kW in one family. It runs on batteries between 40V and 60V and accepts both LiFePO4 and lead-acid chemistries, so you can start with what you have or choose lithium from day one. The PV side allows up to twice the inverter rating as panel capacity, with two, three or four MPPTs depending on the model and up to 20A per MPPT. When the grid fails it switches to backup in under 4 ms, and it can manage a generator and charge the battery from it. The 15kW and 20kW models have two independent battery inputs for very high currents. The enclosure is IP66.

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GoodWe ET LV Series Hybrid Inverter - Key Features

• Three phase hybrid inverters from 5kW to 20kW
• Works with 48V batteries, LiFePO4 or lead-acid, in a 40V to 60V range
• Up to 2x PV oversizing, with 2, 3 or 4 MPPTs and up to 20A per MPPT
• Backup switching in under 4 ms
• Generator compatibility with battery charging
• Dual independent battery inputs on the 15kW and 20kW models
• IP66 protection
• CAN and RS485 communication, with Wi-Fi as an option

GoodWe ET LV Series Hybrid Inverter - Technical Specifications

• Brand: GoodWe
• Series: ET LV (GW5K to GW20K-ET-L-G10)
• Type: three phase low voltage hybrid inverter
• Battery type: LFP (LiFePO4) or lead-acid
• Nominal battery voltage: 48V (range 40V to 60V, start-up 30V)
• Maximum MPPT current: 20A per MPPT
• Maximum continuous battery charge and discharge current: 5kW model on datasheet, 6kW 135A, 8kW 175A, 10kW 220A, 12kW 250A, 15kW 165A + 165A, 20kW 208A + 208A
• Maximum PV input: 8kW model 16kW, 10kW model 20kW, 15kW model 30kW
• Maximum apparent power to grid: 8kW model 8,800VA, 10kW model 11,000VA, 15kW model 16,500VA, 20kW model 22,000VA
• Protection: IP66
• Warranty: 5 years (distributor listing)

Who Should Buy This Inverter?

• Homes and shops with a three phase supply and 48V batteries
• Owners who already have lead-acid batteries and may move to lithium later
• Sites with a generator that should be managed automatically
• Buyers who want to oversize their solar array for more yield
• Larger homes that need very high battery currents
• Installers who want one three phase low voltage family for every size

Choosing the Right Model in the Series

The 5kW to 12kW models have a single battery input, while the 15kW and 20kW models have two independent inputs, which lets them handle much higher combined currents. A good rule is to start from your biggest simultaneous load, add a safety margin for motor start-up, and pick the model whose rated output covers it. Then check that the battery bank you choose can supply the current that model can draw, because the inverter is limited by whichever side is weaker. Your installer can size inverter, battery and panels together.

GoodWe ET LV Series Hybrid Inverter - Compatibility and Installation Guide

• Use a 48V battery on the GoodWe compatibility list, such as the GoodWe BAT series
• Confirm that your site has a three phase supply
• Size battery cables for the high currents listed for your model
• Keep PV strings inside the input limits in the datasheet
• Follow the manual for generator wiring and communication
• Installation should be done by a qualified solar installer

Frequently Asked Questions

What power sizes are available?
5kW, 6kW, 8kW, 10kW, 12kW, 15kW and 20kW.

What batteries can I use?
48V LiFePO4 or lead-acid batteries.

How fast is the backup switch?
Under 4 ms.

Can it manage a generator?
Yes.

Is it single phase or three phase?
Three phase.

What is the IP rating?
IP66.

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