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The Sungrow SG15RT is a 15kW three-phase string inverter for 1000 Vdc systems, rated 15000W AC output against a recommended maximum PV input of 22.5kWp. The SG15RT carries two independent MPPTs taking two strings each across a 160V to 1000V MPP range, and reaches 98.5% maximum efficiency. A quick arc fault circuit interrupter, Type II surge protection on both DC and AC, and a C5 corrosion rating are built in. It complies with AS/NZS 4777.2:2020.
A 1000 Vdc architecture reconfigures the array design rather than merely the inverter selection. A 160V to 1000V MPP range accommodates longer strings, which delivers fewer strings across an equivalent roof. Fewer strings translates to reduced DC cable, fewer MC4 joints, and fewer connectors degrading across twenty years. Each connector eliminated is one fewer location where a series arc can develop. The SG15RT accepts 22.5kWp against 15000W, a 1.5 to 1 DC oversize on two trackers carrying two strings apiece.
One design consideration matters before the strings are configured. Sungrow rates the inverter to 1100V maximum PV input, but the MC4 connectors supplied in the delivery must not be used where system DC voltage can exceed 1000V. MC4 Evo2 connectors are mandatory in that situation, and the inverter idles in standby between 1000V and 1100V. Verify the string calculation against the connector rating rather than the inverter rating, because the two ceilings are different figures.
The SG15RT is three phase only, feeding 3/N/PE, so a single-phase supply needs a different inverter class entirely. It is a grid-tied string inverter with no battery input, so storage requires a hybrid. The supplied MC4 connectors are limited to 1000V even though the inverter accepts 1100V, and MC4 Evo2 connectors are required above that threshold. Installation must be carried out by a licensed electrician and the grid connection made in accordance with AS/NZS 4777.2:2020.
(SG15RT)
No. Sungrow rates the inverter to 1100V maximum PV input, but states the MC4 connectors included in the scope of delivery must not be used where the maximum system DC voltage can exceed 1000V. MC4 Evo2 connectors are required in that case. The inverter also enters standby between 1000V and 1100V.
Four. Two independent MPPT inputs, each carrying two PV strings, across a 160V to 1000V MPP voltage range. Maximum PV input current is 50A, split 25A per tracker, with 64A maximum DC short-circuit current at 32A per tracker. The DC connector itself is rated to 30A.
Yes. A quick arc fault circuit interrupter is integrated. Series arcing on the DC side is the main fire risk in rooftop photovoltaic arrays, typically at a degraded connector. Type II surge protection on both DC and AC, an integrated DC switch, ground fault monitoring, and PV string current monitoring are also built in.
21.7A per phase at 230V, with a maximum AC output current of 25A. Rated AC output power is 15000W and maximum AC output apparent power is 16500VA. The inverter feeds three phases at 3/N/PE, across 220/380V, 230/400V or 240/415V, with an AC voltage range of 180 to 276V per phase.
No. The SG15RT is a grid-tied string inverter with no battery input. A three-phase installation requiring storage needs a hybrid such as the Sungrow SH10RT. Confirm the inverter class before ordering, because a string inverter cannot be converted to a hybrid afterwards.
No. This is a three-phase inverter feeding 3/N/PE with three feed-in phases and three connection phases. Single-phase installations need a single-phase unit such as the Sungrow SG8.0RS-ADA for grid-tied work, or the SH10.0RS where storage is required.
AS/NZS 4777.2:2020, IEC/EN 62109-1 and 62109-2, IEC 61727, IEC 62116 and EN 50530, among others. Grid support covers LVRT and HVRT ride-through, active and reactive power control, and power ramp rate control. Communication runs over WLAN, Ethernet, RS485, with DI and DO connections.
Ten years in two phases. The first 5 years cover full product replacement for any defect. The following 5 years cover parts only, with the warranty paying for components needing replacement or repair. Warranty runs from the invoice date and claims are handled by return to Sparky Direct.
The Sungrow SG15RT is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
This warranty offers a combined coverage of 10 years, divided into two phases:
First 5 Years: During this period, you are entitled to a full product replacement in case of any issues or defects. This means if your product malfunctions within the first 5 years, you'll receive a brand-new replacement.
Following 5 Years: After the initial 5 years, the warranty continues for an additional 5 years, but it shifts to covering parts only. In this phase, if any product components need replacement or repair, the warranty will cover the cost of those parts.
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These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | SUNGROW |
| SKU | SG15RT |
| Model # | SG15RT |
| Package Weight | 23.000kg |
| TYPE | VALUE |
|---|---|
| Type | String Inverter |
| Brand | Sungrow |
| Colour | White |
| Height (mm) | 480 |
| Width (mm) | 370 |
| Depth (mm) | 195 |
| Mounting | Wall Bracket |
| Voltage (V) | 380/400/415 |
| Wattage (W) | 15000 |
| IP Rating | IP65 |
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