Inverters on-grid 3-phase

Three-phase photovoltaic inverter distributes energy from the panels symmetrically across three phases—this is standard for installations in homes with three-phase connections, farms, and smaller commercial facilities. In this category, we offer 3-phase grid-tied inverters. Growatt up to 30 kW, including a series MID KTL3-XH factory-prepared for later expansion with an energy storage unit.

TL; DR: Inverters on-grid 3-phase up to 30 kW. Series Growatt MID 17–30 kW: 2–3 trackers MPPT, IP66 housing, battery-ready design with the possibility of adding a battery APX and an emergency power supply module. Installations above 30 kW are supported by the category industrial invertersB2B: discounts after logging in, shipping from our own warehouse, location: Bytom, VAT invoice.

What is a three-phase inverter on-grid

A three-phase inverter converts direct current from the PV generator to alternating current and distributes it evenly across the three phases of the building's system. Symmetrical phase loading is a key advantage over single-phase solutions in medium-sized and larger installations—balancing production and consumption occurs simultaneously across all phases. Surplus energy is fed into the power grid based on your supplier's billing rules; the terms for connecting micro-installations are determined by the distribution network operator (DSO).

Variant on-grid It doesn't require batteries and is the most cost-effective way to generate your own energy. If you're planning storage and backup power from the start, go to the category 3-phase hybrid inverters.

Who are three-phase inverters up to 30 kW for?

Homes with a three-phase connection. Rooftop installations where a three-phase connection is standard—a three-phase inverter evenly powers all building circuits.

Farms and smaller businesses. Door Line MID 17–30 kW covers the needs of workshops, livestock buildings, cold stores, and service facilities. The IP66 housing allows for installation in more challenging environments.

Installation companies and PV installation contractors. Battery-ready in series MID means one model for two sales scenarios: the customer starts with a network installation, and adds the energy storage and emergency power module in the next stage - without replacing the inverter.

Selection Table - Growatt MID KTL3-XH

Expansion with emergency power supply in series MID uses an external EU back-up module SYN-100-XH-30. The category is completed by the MOD series three-phase grid-tie inverters – ask the sales team about available configurations. APX you will find in the category energy storage.

B2B Shopping in PVGroup.pl

Gross list prices are publicly available. After logging in to your company account, you'll see net prices with your purchasing group's wholesale discount. Ships from our own warehouse. Location: Bytom, each transaction includes a VAT invoice. All inverters are covered by a European service warranty. For projects requiring multiple inverters or a combination with an energy storage system, we will prepare a single, coherent specification – contact: info@pvgroup.pl.

FAQ - Three-Phase Inverters

Which three-phase inverter should I choose for an installation up to 30 kW?

In the 17–30 kW range, the natural choice is the series Growatt MID KTL3-XH: MID17 i MID20 have 2 trackers MPPT, MID25 i MID30 - 3 trackers, providing greater flexibility for multi-slope roofs. All models are IP66-rated and energy storage-ready. For installations over 30 kW, go to category industrial inverters.

Is the three-phase inverter on-grid Can it be expanded later with an energy storage facility?

In the series MID KTL3-XH - yes. It's a battery-ready design: after adding a battery APX 5.0P-B1 with module BMS APX 98034-P2 inverter gains storage function, and with EU module SYN-100-XH-30 - Emergency power supply. Installation starts clean on-grid and grows with customer needs.

Three-phase or single-phase inverter – what to choose?

The building's connection and the scale of the installation are decisive. With a three-phase connection, a 3-phase inverter evenly loads the phases and is the standard for medium-power applications. A single-phase inverter remains the solution for small installations and buildings with a 230V connection—see inverters on-grid 1-phasePlease confirm your connection requirements with your DSO.

What is the difference between an inverter on-grid 3-phase from hybrid?

On-grid It works exclusively with the grid and does not support batteries (except for the battery-ready upgrade described above). The hybrid inverter manages the energy storage and backup power from the start. You can find the full range of hybrids in the category 3-phase hybrid inverters.