Fox ESS · 2.5 kW · 1-phase single tracker PV inverter
Fox ESS S2500 2.5kW PV inverter
Between the 2.0 kW and 3.0 kW models sits the Fox ESS S2500, the 2.5 kW single-phase, single tracker step for arrays that fall between the S series sizes. It gives the design one more notch before the jump to the top of the range, catching the array that has outgrown a 2.0 kW unit.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
Half-kilowatt steps are what make the S series useful to a working installer. Arrays do not arrive in tidy whole numbers, and the S2500 catches the designs that would otherwise force an awkward choice between a smaller unit and paying for capacity the array cannot use. It shares the series' single tracker, single-phase layout, so nothing about the install changes as you move up the sizes. Buy it the trade way: the ex-VAT price on the page is the price at any quantity, with no minimum order.
Specification
| Brand | Fox ESS |
|---|---|
| Part number | FE-S2500 |
| Power rating | 2.5 kW |
| Phase | Single-phase |
| Condition | New |
| Category | Inverters · Main Units |
| Delivery method | Parcel courier |
What it pairs with
Monitoring is the standard companion: the Fox WLAN-WW monitoring stick covers most domestic installs, and the 4G-2 dongle solves the sites with no usable internet. Both appear in the Fox accessory list alongside this unit. Because accessory compatibility can shift with model and firmware revisions, run the final combination past Fox's current pairing list before it goes on the order.
Single-phase only, rated 2.5 kW with a single tracker. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-07-19