versusindex
UK
Solar inverters · UK

Fox ESSKA9.9

Fox ESS KA9.9
Image: Fox ESSrequest removal

The Fox ESS KA9.9 is a solar inverter with AC power 9.9 kW and european efficiency 97.4 %.1,2

Last updated: Technical specifications ⇄ Compare this model
Search this model
AC power
9.9kW1
European efficiency
97.4%2
Manufacturer data
Hybrid (battery-ready)
Yes2
Manufacturer data
MPPT voltage min.
80V2
Manufacturer data
MPPT voltage max.
500V2
Manufacturer data

Technical specifications

Performance
AC power 9.9 kW1
Strings per MPPT 12
Efficiency
Max. efficiency 97.8 %2
European efficiency 97.4 %2
Noise
Noise 30 dB(A)2
Electrical
MPPT voltage min. 80 V2
MPPT voltage max. 500 V2
Connectivity & smart
Hybrid (battery-ready) Yes2
Backup power Yes2
Wi-Fi / monitoring Yes2
Dimensions & weight
IP rating IP652
Width 450 mm2
Height 527 mm2
Depth 208 mm2
Weight 27.5 kg2

Manufacturer documentation

External links to Fox ESS's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

Compare with

Frequently asked questions

What is the AC power of the Fox ESS KA9.9?

The AC power of the Fox ESS KA9.9 is 9.9 kW.1,2

What is the european efficiency of the Fox ESS KA9.9?

The european efficiency of the Fox ESS KA9.9 is 97.4 %.1,2

Does the Fox ESS KA9.9 have hybrid (battery-ready)?

Yes, the Fox ESS KA9.9 has hybrid (battery-ready).1,2

Sources

  1. CEC approved inverters (Australia) — Clean Energy Regulator (Australian Government), CC BY 4.0 · accessed 29 Sept 2026
  2. KH/KA SINGLE-PHASE HYBRID/AC INVERTER, 1.6 | 2025/10/09 — Fox ESS · accessed 29 Sept 2026