GoodWe SDT G3 On-Grid Inverter 50kW (4 MPPT)

The GoodWe GW50K-SDT-C30 is the 50kW model of the SDT G3 series and the largest inverter on this list that still weighs only 33kg. It is made for commercial and industrial rooftops such as factories, warehouses, hospitals and large institutions that want strong output from a compact unit. It has four MPPTs and accepts 1100V at the input, with an MPPT operating range of 140V to 1000V and a start-up voltage of just 160V, so it starts early and finishes late in the day. Maximum efficiency is 98.7%. GoodWe describes its noise level as under 50 dB, which is very quiet for a 50kW unit and helpful for sites close to occupied rooms. It includes an AFCI function for arc fault safety, anti-islanding protection, MC4 DC connectors and an AC terminal for cables up to 70mm². Night-time consumption is below 1W, the enclosure is IP66 and the warranty is 5 years.

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GoodWe SDT G3 On-Grid Inverter 50kW - Key Features

• 50kW three phase on-grid output
• 4 MPPTs with a 140V to 1000V operating range and 160V start-up
• Maximum efficiency of 98.7%
• Noise level below 50 dB
• AFCI function and anti-islanding protection
• MC4 DC connectors and an AC terminal for cables up to 70mm²
• Night-time consumption below 1W
• IP66 protection for indoor or outdoor mounting
• 5 year standard warranty

GoodWe SDT G3 On-Grid Inverter 50kW - Technical Specifications

• Brand: GoodWe
• Model: GW50K-SDT-C30 (SDT G3 Series 50kW)
• Type: three phase on-grid string inverter
• AC nominal power: 50,000VA
• DC nominal power: 50,000W
• MPPTs: 4
• Maximum input voltage: 1100V
• MPPT operating range: 140V to 1000V
• Start-up voltage: 160V
• Maximum efficiency: 98.7%
• DC connector: MC4 (4 to 6mm²)
• AC connector: OT / DT terminal (maximum 70mm²)
• Night-time consumption: below 1W
• Dimensions (W × H × D): 646 × 484 × 230mm
• Weight: 33kg
• Protection: IP66
• Warranty: 5 years

Who Should Buy This Inverter?

• Factories, warehouses and industrial rooftops
• Hospitals, schools and institutions with large three phase loads
• Sites close to occupied rooms where noise is a concern
• Projects that use modern high power panels
• Owners who want fewer, larger inverters with a light installation weight
• Installers who need a commercial inverter that is easy to lift and mount

Why a Light, Quiet 50kW Unit Matters

Large inverters can weigh far more than 33kg, which means a crane or several workers and a stronger mounting structure. A lighter unit cuts installation time and cost, and it can be placed on simpler frames or walls. Low noise matters too: a typical quiet room is around 40 dB, and a unit under 50 dB will not disturb most offices or classrooms nearby. Combined with IP66 protection and a low night-time draw, it is a practical choice for sites where both space and comfort count.

GoodWe SDT G3 On-Grid Inverter 50kW - Compatibility and Installation Guide

• Confirm that your site has a three phase supply of suitable size
• Keep every string inside the 140V to 1000V MPPT window and under 1100V
• Use cables within the AC terminal’s 70mm² limit
• Use correctly sized DC cables with MC4 connectors and check polarity
• Plan a mounting frame or wall that can hold a 33kg unit
• Installation should be done by a qualified commercial solar installer

Frequently Asked Questions

What is the rated power?
50kW three phase.

How many MPPTs does it have?
Four.

How efficient is it?
98.7% maximum.

How quiet is it?
Under 50 dB, per GoodWe.

Does it include arc fault protection?
It includes an AFCI function.

What is the IP rating?
IP66.

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