Deye 33–50 kW Three-Phase Low-Voltage Solar Inverter

This is Deye's three-phase string inverter for low-voltage grids: the 127/220 V and 133/230 V supplies found in Brazil and other markets that never moved to 400 V. Five ratings run from 33 kW to 50 kW, all grid-tied with no battery attached, all with four independent solar inputs. The rating decides the array, because Deye allows 1.5 times the AC power in panels on every model here.

True of every rating

• Grid side is 127/220 V or 133/230 V three-phase, certified to NBR 16149, NBR 16150 and EN 50549
• Four independent solar inputs, 40 A each, tracking 200 to 700 V under an 800 V ceiling
• Panels can be oversized to 1.5 times the AC rating on every model in the range
• IP65 enclosure, air cooled, 53.7 kg, rated to 65 °C ambient with derating above 45 °C

Choose your rating

33 kW three-phase string inverter for a 220V commercial rooftop

The entry point of the range and the cheapest way into four-tracker solar on a 220 V grid. It puts out 86.7 A per phase and accepts 49.5 kW of panels, at a peak efficiency of 98.6%. Fits a warehouse or supermarket roof where the load runs through daylight hours and nobody plans to add batteries later.

Rated AC power: 33 kW · Max AC output current: 86.7 A · Max PV input power: 49.5 kW · Peak efficiency: 98.6%

Model code: SUN-33K-G04P3-EU-AM4-LV

35 kW three-phase string inverter, 52.5 kW of panels on a 220V grid

A 2 kW step over the 33 kW that buys 3 kW more panel headroom, 52.5 kW in total, and 91.9 A per phase at the output. Peak efficiency stays at 98.6%; the 98.7% figure only starts at 40 kW. Choose this one when the roof came out slightly larger than the 33 kW would carry and you would rather not move up a whole size.

Rated AC power: 35 kW · Max AC output current: 91.9 A · Max PV input power: 52.5 kW · Peak efficiency: 98.6%

Model code: SUN-35K-G04P3-EU-AM4-LV

40 kW three-phase string inverter for a factory roof on a 220V grid

First rating in the range to reach 98.7% peak efficiency, a tenth of a point above the 33 kW and 35 kW. It delivers 105 A per phase and takes 60 kW of panels. At this size the AC cable run and the site's main breaker matter as much as the inverter itself, so have the run sized before you order.

Rated AC power: 40 kW · Max AC output current: 105 A · Max PV input power: 60 kW · Peak efficiency: 98.7%

Model code: SUN-40K-G04P3-EU-AM4-LV

45 kW three-phase string inverter, 67.5 kW array on 127/220V supply

Sits between the 40 kW and the 50 kW, and it exists for roofs that overshoot 60 kW of panels without reaching 75 kW. Output is 118.2 A per phase at 98.7% peak efficiency, with 67.5 kW the most PV Deye allows on it. Same cabinet and the same four 40 A inputs as every other rating here, so the only planning change is cable size.

Rated AC power: 45 kW · Max AC output current: 118.2 A · Max PV input power: 67.5 kW · Peak efficiency: 98.7%

Model code: SUN-45K-G04P3-EU-AM4-LV

50 kW three-phase string inverter, the largest LV model at 75 kW PV

The largest in the range: 131.3 A per phase and 75 kW of panels, still on four inputs of 40 A each, still at 98.7% peak efficiency. On a 220 V grid that is a great deal of current out of one machine, so the AC side wants proper sizing and a short run to the board. It is the top of this low-voltage range.

Rated AC power: 50 kW · Max AC output current: 131.3 A · Max PV input power: 75 kW · Peak efficiency: 98.7%

Model code: SUN-50K-G04P3-EU-AM4-LV