
Solis 20kW S5 3 Phase Dual MPPT - DC
Product details
- Rating: 20,000W
- Phases: 3
- Max. efficiency of 98.7%
- Type-II over-voltage surge protection for both DC and AC
- Wide voltage range - Ultra low start-up voltage of 180V and max PV input voltage of 1100V
- 16A PV string input x 4
- Maximum AC output power of 22kW
- Max PV DC Power of 30kW
- Integrated AFCI (DC arc-fault circuit protection)
- IP66 Rated DC reverse-polarity protection 5-year standard warranty
Series 5 GR3P Three Phase Grid-Tied Inverter Product
Features:
Register on SolisCloud, to support remote upgrade and control.
SA:NRS-097-2-1 Certified and City of Cape Town Approved.
This product must be installed by a qualified electrician/technician. All installations must adhere to local wiring regulations and standards. ClearRay Solar will not be held liable for any product malfunctions as a result of incorrectly installed systems.
Important
Please note that this inverter does not include a data logger, CT, meter or export power manager. The meter "SOL-METER-3PH-CT3" is needed for export power control of one inverter, for more than one inverter use the EPM3-5G-PLUS. The meter requires a data logging stick but EPM3-5G-PLUS has a built in data logger. These items are sold separately. SA: NRS097 certified but not City of Cape Town Approved.Top of the S5 GR3P range
The 20 kW is for commercial roofs and ground mounts that are too small for the S5 GC range but outgrow the 15 kW. It will run a 30 kW array.
Array and strings
There are two trackers, each taking two strings at a combined 32 A, 40 A short-circuit. Tracking runs from 160 V to 1,000 V and the input limit is 1,100 V. Sixty 500 W panels would make 30 kW, but four strings of fifteen need a cold-weather voltage check. A 28 kW layout of four strings of fourteen keeps more headroom.
Standard kit and extras
- DC switch integrated
- Type II surge protection, DC and AC
- AFCI arc-fault protection (needs activating)
- Three-phase meter for export control
- Logger for SolisCloud
Grid
28.9 A rated and 31.8 A maximum per phase. Check the incoming supply capacity as well as applying under G99. Certificates, including G100 for export limiting, are in the Documents tab.
Goes with the 20 kW
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Meter and CT set, three-phase
The DTSD1352 meter with 150 A:5 A CTs, for export limitation on a single S5 three-phase inverter.
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4G + Wi-Fi logger, no SIM
The 4-pin S1 stick for S5 and older inverters. Use your own SIM on sites without Wi-Fi.
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Extended warranty, GR3P 3–20 kW
Five more years for the Series 5 GR3PK range, which tops out at this 20 kW.
Buying more than one
| Pack | Units | Price | Per unit | Saving |
|---|---|---|---|---|
| Single | 1 | £690.00 | £690.00 | — |
| Pack of 3 | 3 | £1,987.55 | £662.52 | 4.0% |
| Pack of 6 | 6 | £3,932.98 | £655.50 | 5.0% |
Prices exclude VAT. Per-unit figures are worked out from the pack price.
About this size
Solis's S5 GC commercial range starts at 25 kW, for example the S5-GC25K, with three trackers.
Intelligent redundant fan cooling, as on the 12 and 15 kW.
Up to 98.7%, and 98.1% on the European weighting.
Three or six S5-GR3P20K units, the same as the single. Compare the per-unit prices in the table below.
Build your complete solar system
Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.



