Inverters

Fronius Ohmpilot

£ 798.42GBP · price may vary

Model: FR-4.050.016
Specifications: 2

MPN4,050,016
PhasesSingle phase, Three phase

Overview

Used to intelligently control heating elements for providing hot water in boilers and buffer storage tanks, but can also be used for infrared heating or towel radiators. As soon as surplus energy is available, this is fed directly to a heating load increasing self consumption from a PV system. Continuously adjustable regulation from 0 to 9 kW Single or three phase Easy installation Compatible with other heat sources, such as heat pumps Protection against legionella Dynamic power reduction enables zero feed-in A Fronius Smart Meter is also required for operation.

Specifications

MPN	4,050,016
Phases	Single phase, Three phase

What these specifications mean

Fronius Ohmpilot is listed with 2 published specifications from Fronius, including MPN of 4,050,016 and phases of Single phase, 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 peak and weighted (European/CEC) efficiency, typically 96–98.5%, topology — on-grid, off-grid, hybrid or micro, continuous AC output in kW, which caps the load you can run at once and surge or peak rating, which covers the brief inrush of motors and compressors. 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.

What to check before ordering

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.

Confirm the inverter is approved by your local utility or distribution network before you buy if you intend to export power — grid connection depends on certified anti-islanding and local grid-code compliance, not on the inverter's specifications alone.
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.

Common mistakes

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 in United Kingdom

Fronius Ohmpilot is listed at £ 798 (GBP) for United Kingdom. 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 United Kingdom: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Fronius locally before ordering.

Fronius Ohmpilot — frequently asked questions

How much does Fronius Ohmpilot cost?

Fronius Ohmpilot is listed at £ 798 (GBP) for United Kingdom. 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 Ohmpilot?

We hold 2 published specifications for this inverter, including MPN 4,050,016 and phases Single phase, Three phase. The full table is on this page, listed under model FR-4.050.016.

Who makes Fronius Ohmpilot?

Fronius Ohmpilot is a Fronius product, listed under inverters with model reference FR-4.050.016. The Fronius brand page lists the rest of its range so you can compare across the catalogue.

Is Fronius Ohmpilot 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 Ohmpilot in United Kingdom?

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 in United Kingdom — buying in-channel is what keeps the manufacturer's warranty valid.

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