Fox ESS · single-phase hybrid inverter
Fox ESS KH / KA hybrid inverter, 7–10.5 kW
The larger single-phase hybrids: three MPPT trackers, parallel operation of up to ten units and a −40 to +70 °C operating range. KH works with a PV array, KA on the AC side only, as a storage inverter.
Three trackers on a hybrid
An unusual combination: most single-phase hybrids have one or two trackers. Here the array splits into three independent groups.
Scales in parallel
Up to ten inverters in parallel — over 100 kW on a single-phase bus if the site calls for it.
Works in frost and heat
A −40…+70 °C range, among the widest in the line-up. Derating only starts at +45 °C.
99.9% MPPT efficiency
Close to the theoretical limit for maximum power point tracking; peak conversion efficiency is 97.8%.
Shipped from stock in Krasnodar across Russia. Send us the array size and grid phase configuration — our engineer will check the inverter selection and string layout before dispatch.
Model range and electrical data
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| Model | Charge / discharge | Rated AC power | Max. apparent AC power | Rated AC current, A | Max. AC current, A |
|---|---|---|---|---|---|
| KH7 / KA7 | 7,0 кВт | 7000 Вт | 7700 ВА | 30,4 | 33,5 |
| KH8 / KA8 | 8,0 кВт | 8000 Вт | 8800 ВА | 34,8 | 38,3 |
| KH9 / KA9 | 9,0 кВт | 9000 Вт | 9900 ВА | 39,1 | 43,0 |
| KH10 / KA10 | 10,0 кВт | 10000 Вт | 10500 ВА | 43,5 | 45,7 |
| KH10.5 / KA10.5 | 10,5 кВт | 10500 Вт | 10500 ВА | 45,7 | 47,7 |
Specifications and operating conditions
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| PV input (KH only) | max. 600 V · start-up 75 V · rated 360 V · MPPT 85–480 V |
|---|---|
| Max. input / short-circuit current | 20 A / 16 A per tracker |
| MPP trackers / strings per tracker | 3 / 4 |
| Max. recommended DC power | 15,000 W |
| Battery type | lithium-ion, high voltage |
| Battery voltage / charge-discharge current | 85–480 V (300 V recommended) · 50 / 50 A |
| Storage capacity | up to 7 batteries in series — up to 33.24 kWh |
| Grid | 220/230/240 V (range 180–270 V), 50/60 Hz ±5 |
| EPS output (backup) | up to 12,000 VA · peak 10,000–12,000 VA for 60 s · switchover <20 ms |
| Efficiency: MPPT / European / max. | 99.9% / 97.4% / 97.8% |
| Charge (PV→BAT) / discharge (BAT→AC) efficiency | 98.5% / 97.0% |
| Parallel operation | up to 10 units |
| Dimensions (W×H×D) / weight | 450 × 527 × 208 mm · 29 kg (KH) / 27.5 kg (KA) |
| Operating conditions | −40…+70 °C (derating from +45 °C) · IP65 · noise <30 dB |
| Monitoring and communication | Wi-Fi, 4G and meter (optional) · RS485, CAN, DRM, USB, CT · 16×4 LCD |
| Protection | PV and battery reverse polarity, anti-islanding, output short circuit, residual current, insulation monitoring, overcurrent and overheat; type II SPD both sides, AFCI optional |
| Standards | IEC 62109-1/-2 · IEC 62477-1 · EN 61000-6-1/2/3 · G99 · EN 50549 · NRS 097-2-1 |
Documents
Official manufacturer datasheets. Installation manuals and certificates are supplied with the order — ask us and we will send them the same day.