
S6 4kW Dual MPPT - Single Phase With DC
Product details
- Rating: 4,000W
- Phases: 1
- Maximum string input current 14A
- Easy installation: Integrate with export power control function and DRM function.
- Max. Efficiency over 97.7% European efficiency over 97.1%
- Wide input voltage range for better generation and low startup
- Dual MPPT design with precise MPPT algorithm
- Export Limitation built in - Requires CT clamp (sold separately)
- Integrated AFCI (DC arc-fault circuit protection)
- Rated IP66
- 10-year standard warranty for the Netherlands, Belgium, France, Germany, Poland, Italy
Solis S6 is the latest generation of residential inverters from Solis. This range of inverters are leaders in affordable small residential and commercial rooftop installations.
Product Features
With built in DC switch.
Need monitoring? The Solis WIFI adaptor is compatible with all Solis inverters, click here for details.
4 kW, two roof faces
This is the first S6 dual tracker over the G98 line. Pick it when the roof can carry around 6 kW of panels and you are willing to apply to the DNO first.
Getting it connected
Rated output is 17.4 A at 230 V, over the 16 A single-phase G98 limit. The DNO has to approve it first. If they cap export, the built-in export manager can hold it to that figure. The G100 certificate issued for SOL-4.0-S6-DT-DC is in the Documents tab for that case.
String layout
There are two MPPTs, one string on each, at 14 A with 22 A short-circuit. Tracking runs from 90 V to 520 V, with generation from 120 V and 600 V as the input limit. Twelve 500 W panels, six per face, give the full 6 kW.
Supplied / not supplied
- DC switch integrated into the inverter
- Export limitation built in, with DRM
- DC arc-fault protection (AFCI), activated at commissioning
- CT clamp for the export limit, sold separately
- Wi-Fi or GPRS monitoring stick
Recommended alongside
-
Solis 100 A CT with 10 m lead
Needed for export limitation on single-phase S6 units. The supplier notes say it needs current firmware on the inverter.
-
Mobile-network data stick
A GPRS logger suited to every Solis model, useful where the inverter is far from the router.
-
15 more years of cover
For S6 GR1PK inverters from 2.5 to 6.0 kW, making 20 years in total.
Buying more than one
| Pack | Units | Price | Per unit | Saving |
|---|---|---|---|---|
| Single | 1 | £307.36 | £307.36 | — |
| Pack of 5 | 5 | £1,491.11 | £298.22 | 3.0% |
| Pack of 10 | 10 | £2,951.75 | £295.18 | 4.0% |
| Pallet of 16 | 16 | £4,674.06 | £292.13 | 5.0% |
Prices exclude VAT. Per-unit figures are worked out from the pack price.
FAQ
An export-limited install still goes through the DNO. It becomes a G99 application with a G100 export-limiting scheme, and the certificate for that is provided.
21.0 A. Size the circuit protection from that figure.
It uses the same input stage and case (11.2 kg), with more output: 4.4 kVA against 4 kVA.
Yes, the S6-GR1P4K throughout, as a single, a pack of 5 or 10, or a pallet of 16. Compare per-unit prices 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.



