Inverters

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter

£ 641.97GBP · price may vary

Model: BYD-SH3K
Specifications: 8

Power Rating3000W
System Battery VoltageHV
MPPT Trackers2
PhasesSingle Phase
ConnectivityWifi, Ethernet
View all 8 specifications ↓

Overview

BYD's single -phase high-voltage hybrid inverter for use with the Battery-Box HVE storage system. The inverters feature dual MPPT tracking, flexible backup and up to 200% PV oversizing. The inverter supports seamless switchover to backup power, with the backup output rated for surges of up to 2x the inverters rated output to ensure uninterrupted operation of critical loads. Up to 3 inverters can be connected in parallel, each with up to 70.7kWh of storage, allowing systems up to 18kW output (including during backup) and 212kWh of storage capacity. With an IP65 protection rating, integrated surge protection and arc fault detection, and intelligent fault diagnosis, the Power-Box range offers reliable operation with minimal downtime. >99.9% MPPT Efficiency >97.7% Inverter Efficiency <13ms backup switching time for seamless changeover Type III AC & Type II DC SPD included Integrated Arc Fault Detection Warranty: 5 + 5 years

Specifications

Power Rating	3000W
System Battery Voltage	HV
MPPT Trackers	2
Phases	Single Phase
Connectivity	Wifi, Ethernet
Weight (kg)	20
IP Rating	IP65
On Grid / Off Grid	On Grid

How to read this datasheet

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter is listed with 8 published specifications from BYD, including power rating of 3000W, system battery voltage of HV, MPPT trackers of 2 and phases of Single 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 topology — on-grid, off-grid, hybrid or micro, 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 and maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect. 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.

Choosing an inverter: the checks that matter

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.

What people get wrong

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.
Ignoring the ambient temperature rating. Inverters derate in heat, so a unit rated 5 kW at 25 °C may deliver noticeably less on a hot roof-adjacent wall at 45 °C.

Price and availability

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter is listed at £ 642 (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 BYD locally before ordering.

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter — frequently asked questions

How much does BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter cost?

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter is listed at £ 642 (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 BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter?

We hold 8 published specifications for this inverter, including power rating 3000W, system battery voltage HV, MPPT trackers 2, phases Single Phase and connectivity Wifi, Ethernet. The full table is on this page, listed under model BYD-SH3K.

Who makes BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter?

BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter is a BYD product, listed under inverters with model reference BYD-SH3K. The BYD brand page lists the rest of its range so you can compare across the catalogue.

Is BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter right for my system?

That depends on what it has to connect to. For an inverter, check the MPPT voltage window, which decides how many panels go in a string, peak and weighted (European/CEC) efficiency, typically 96–98.5% and topology — on-grid, off-grid, hybrid or micro against the rest of your equipment before price enters the decision. 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.

Where can I buy BYD Power-Box SH3/3.7/4.6/5/6K Single Phase Hybrid Inverter?

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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