Deye SUN-30K-SG01HP3-EU-BM3 (30 kW) - three-phase hybrid inverter, high-voltage battery

Thirty kilowatts: where the industrial class begins

The SUN-30K-SG01HP3-EU-BM3 is the most powerful hybrid in this catalogue and the first model that two people no longer simply hang on a boiler-room wall: the 527 by 894 by 294 mm housing weighs 80 kg. Thirty kilowatts give ten kilowatts per phase, the level of genuine production: a workshop with several machines and compressors, a bakery with two or three ovens, a cold store, a greenhouse complex with irrigation and ventilation, a hotel, a dairy farm with a milking parlour. For such a site a hybrid is bought not to cut the bill but so that a grid failure never stops the process: a halted oven, cold room or ventilation system costs more than any inverter. The battery must be high voltage, 160 to 800 V, plus a Deye HVB750V/100A control box (item 2099) for each cluster; low-voltage 48 V modules do not fit. If more than thirty kilowatts is needed, such systems are built from several inverters in parallel, and that configuration is worth designing together with the supplier.

Two 50 A battery inputs: the model's defining feature

The battery channel here is doubled: two independent inputs at 50 A of charge and discharge each, 100 A together, across a 160 to 800 V working range. In practice that means two things. First, power from storage never becomes the constraint again: at a cluster voltage of 400 V the two inputs give 40 kW, more than the inverter's own rating. Second, two separate cabinets can be built and connected in parallel, each with its own control box — convenient when storage grows in stages or when the batteries need to sit in physically separate rooms. The 800 V upper limit, against 700 V on the smaller models, allows longer clusters: fifteen 51.2 V modules give 768 V, which is within specification here. The 160 V lower limit formally leaves room for small banks, though for thirty kilowatts those obviously make no sense.

Three 36 A trackers and an array of up to 39 kW

The photovoltaic side consists of three independent MPPTs at 36 A of operating current (short-circuit current up to 55 A) with two strings each — six strings in total and up to 39 kW of panels. The full-load threshold here is 360 to 850 V, considerably gentler than the twenty-five-kilowatt model with its 625 V: a string of ten to twelve modules already lets the inverter deliver full power. For a large array that matters practically: six strings of ten to twelve panels lay out on a workshop roof or on the ground far more easily than four strings of eighteen. Maximum input voltage is 1000 V, start-up 180 V, rated PV voltage 600 V and tracking efficiency 99.9 %. Three independent trackers also provide redundancy: a problem in one panel group does not affect the other two, and in a system this size that saves money during diagnostics.

200 A of transit per phase: the inverter never limits the site

Maximum grid input current is 200 A per phase, over 130 kW of pass-through, the highest figure in this catalogue. The point is simple: the inverter can be installed on the service of an entire workshop or complex without dividing the board into backed-up and non-backed-up groups, while daytime consumption is limited only by your supply contract. When the grid fails the inverter holds its thirty kilowatts, and anything beyond that limit must be shed by the control system — so load priorities still have to be thought through, however large the transit figure. Rated output current is 45.5 A per phase at 220 V and 43.5 A at 230 V; apparent power is 33 kW, and in island mode the model holds one and a half times its rating, about 45 kW for ten seconds. For 200 A per phase the power installation must match: 95 to 120 mm² cable or busbar, terminals torqued to specification and an incoming device agreed with the network operator.

Generators, priorities and flow management

A generator input here is a mandatory part of the design rather than an option: thirty kilowatts of load will drain even a 60 kWh cabinet in two hours, so during long outages the set becomes the main source. The inverter synchronises with the generator, feeds the site from it and charges both battery clusters in parallel, absorbing inrush surges from its own reserve — which allows a 30 to 35 kVA set instead of a 50 kW one. Generator charging current is limited in the settings: without a limit the inverter will try to take all 100 A and overload the set. Priorities for consumption, charging and export are configurable by the hour, so the system can be tuned both to an outage schedule and to a tariff. All of it is visible in the app and on the display; in a system of this scale monitoring is a working tool rather than a convenience, because the curves are what reveal degradation in an individual panel group or cluster.

Eighty kilograms and 65 dB: what the room must provide

A mass of 80 kg and dimensions of 527 by 894 by 294 mm mean the installation is planned in advance: three people or a hoist, a solid wall or frame, and service access from every side. Typical noise is up to 65 dB — the loudest model in the catalogue, and unambiguously equipment for a technical room, a switch room or a separate annexe rather than the hallway of a house. IP65 formally permits outdoor mounting, but at this power a closed ventilated room is better: the operating range is -40 to +60 °C with derating above +45 °C, and in summer sun you would lose output during the very best hours. Six strings mean twelve pairs of MC4 connectors, so cable trays and labelling are better planned before installation. The BMS link to both clusters runs over RS485 or CAN with self-adaptation, with control from the display and the mobile app.

How it differs from its neighbours in this catalogue

The smaller SUN-25K-SG01HP3-EU (item 2075) stays in the 30.5 kg wall housing: 25 kW, a single 50 A battery input, a 32.5 kW array and 80 A of transit — cheaper to install, but it requires strings above 625 V for full power and offers half the battery current. The SUN-20K-SG01HP3-EU-AM2 (item 2070) gives 20 kW with 37 A on the battery side and a 500 V threshold. There is no low-voltage alternative at thirty kilowatts in this catalogue: the most powerful LP3 hybrid, the SUN-20K-SG05LP3-EU-SM2 (item 2056), delivers 20 kW at 350 A of battery current, and scaling low-voltage architecture further is impractical precisely because of the currents. If your site consumes less but needs large panel arrays, it is worth comparing three-phase grid-tie models too — the SUN-30K-G04 (item 2051) or the SUN-35K-G04 (item 2065) — which cost less but provide no backup during an outage at all.

Describe the process that must never stop and the equipment involved, and we will calculate the kilowatts required, the cluster configuration and the generator size for this model.