Inverters

Fronius Verto

£ 3,064.47GBP · price may vary

Model: FR-4.210.420
Specifications: 10

MPN4,210,420
Power Rating15000W
MPPT Trackers3
PhasesThree Phase
ConnectivityEthernet, WiFi
View all 10 specifications ↓

Overview

The Fronius Verto inverters are highly flexible with four high-current MPP trackers and a wide voltage range. The Fronius Verto also uses an integrated Dynamic Peak Manager algorithm that enables users to achieve optimal yields even in shady conditions. With an integrated surge protection device and an Arc Fault Circuit Interrupter (AFCI), the Fronius Verto guarantees the very highest safety standards even in its basic configuration, without the need to pay for additional components. With Fronius, you can also rest assured that your data is in the best hands, ensured by their certified information security system, servers and cloud storage located in Europe. Key features: Power classes 15.0, 17.5, 20.0, 24.0, 25.0, 27.0, 30.0, 33.3kW 3 or 4 MPP Trackers (depending on model) - wide DC voltage range 2 inputs per tracker - no string fuses required Arc Guard AFCI on board as standard AC and DC over voltage protection as standard Designed for fast easy installation Warranty Inverters from 13 kW Option 1 - 2-year Fronius Warranty Plus + 3-year Fronius Warranty Plus upon registration Option 2 - 2-year Fronius Warranty Plus + 5-year Fronius Warranty upon registration Fronius Warranty - The Fronius Warranty offers warranty protection for the material over the entire service life. Fronius Warranty Plus - The Fronius Warranty Plus covers the material, servicing, and transport costs. Warranty extensions available up to 20 years

Specifications

MPN	4,210,420
Power Rating	15000W
MPPT Trackers	3
Phases	Three Phase
Connectivity	Ethernet, WiFi
Connection	MC4 (PV), Terminal (AC)
Weight (kg)	35.2
Full Pallet Quantity	4
Certification	G99, G100
IP Rating	IP66

Reading the specifications

Fronius Verto is listed with 10 published specifications from Fronius, including MPN of 4,210,420, power rating of 15000W, MPPT trackers of 3 and phases of Three Phase. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.

For an inverter, the figures that matter most are continuous AC output in kW, which caps the load you can run at once, surge or peak rating, which covers the brief inrush of motors and compressors, maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect and the MPPT voltage window, which decides how many panels go in a string. It is the component that decides what a solar system can do: how much power you can draw at once, whether you can export to the grid, whether the system keeps running in a blackout, and how well the panels and battery are managed day to day.

Before you buy an inverter

The checks below apply to any inverter. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Match the battery communication protocol (CAN bus or RS485) between inverter and battery. Compatible voltages are not enough; without a supported protocol the battery management system and inverter cannot agree on charge limits.
Look at the warranty term and what it covers. Five years is the common baseline, ten is offered by stronger brands, and extensions are often cheaper bought with the unit than later.
Size the inverter against the loads you need to run simultaneously, not against the total wattage of every appliance in the building — a 5 kW inverter comfortably runs a fridge, fans, lights and a couple of ACs, but not all of them plus a water pump starting at the same time.
Keep the panel array between roughly 1.0 and 1.3 times the inverter's rating. Slight oversizing (a higher DC-to-AC ratio) captures more energy on cloudy mornings and winter days; going far beyond it wastes generation through clipping.

Where buyers lose money

Assuming any grid-tie inverter keeps the lights on during an outage. Standard on-grid units shut down for safety unless they have a dedicated backup or islanding output.
Overlooking the IP rating. An outdoor installation needs at least IP65; indoor-rated units mounted outside fail early.
Buying on peak-watt price alone. A cheap inverter with a narrow MPPT window forces awkward string layouts and can strand a portion of the array.

Price and availability

Fronius Verto is listed at £ 3,064 (GBP). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Fronius locally before ordering.

Fronius Verto — frequently asked questions

How much does Fronius Verto cost?

Fronius Verto is listed at £ 3,064 (GBP). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

What are the specifications of Fronius Verto?

We hold 10 published specifications for this inverter, including MPN 4,210,420, power rating 15000W, MPPT trackers 3, phases Three Phase and connectivity Ethernet, WiFi. The full table is on this page, listed under model FR-4.210.420.

Who makes Fronius Verto?

Fronius Verto is a Fronius product, listed under inverters with model reference FR-4.210.420. The Fronius brand page lists the rest of its range so you can compare across the catalogue.

Is Fronius Verto right for my system?

That depends on what it has to connect to. For an inverter, check maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect, the MPPT voltage window, which decides how many panels go in a string and peak and weighted (European/CEC) efficiency, typically 96–98.5% against the rest of your equipment before price enters the decision. Match the battery communication protocol (CAN bus or RS485) between inverter and battery. Compatible voltages are not enough; without a supported protocol the battery management system and inverter cannot agree on charge limits.

Where can I buy Fronius Verto?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.

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