Solis · 4.0 kW · 1-phase inverter · dual MPPT
Solis S6 4kW dual MPPT 1-phase inverter
The S6 4kW dual MPPT is the capacity step for single-phase jobs where 3.6kW would leave panels underused. It suits installers quoting bigger domestic arrays who already plan the DNO application as part of the job.
Description
The extra headroom over a 3.6kW unit matters on modern arrays, where panel counts have crept upward and clipping on a smaller inverter becomes measurable. Two trackers let the design use both roof faces properly rather than compromising the string plan around a smaller unit. It carries the same S6 platform familiarity as the rest of the single-phase line, so crews who know the 3.6kW will not need retraining. The DC isolator is included, and the trade price is flat at any order size.
Specification
| Brand | Solis |
|---|---|
| Part number | SOL-4.0-S6-DT-DC |
| Power rating | 4 kW |
| Phase | Single-phase |
| Condition | New |
| Category | String inverters · Main Units |
| Delivery method | Parcel courier |
What it pairs with
On export-limited connections, fit the Solis Export Power Manager 5 Gen - 1ph alongside; for metering, the Solis Meter 1ph Eastron with external CT. Add a Solis Data Logging Stick - Wi-Fi & LAN for monitoring, checking the 4-pin versus USB fitting against Solis's current pairing list for your unit's revision.
Single-phase only, rated 4.0 kW with two MPPTs; above 3.68 kW this needs G99 approval before install. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-09-08