Fox ESS
Fox ESS G9.9-VB
G Series
String inverter
Fox ESS G9.9-VB has a reviewed nominal AC active-power rating of 9900 W.
Deep comparison fields reviewedThis local comparison record does not approve module compatibility, string sizing, grid connection or electrical safety.
Documented source scope: Global / ROW — current -VB manual variant. This is not a statement about your location or product availability. manufacturer-id + exact model code + market; no cross-region, power-bin, suffix, phase, certification or hardware-generation merge
Representative illustration — not the manufacturer’s exact hardware appearance.
Field-level provenance
Electrical specifications
Unknown means the field has not passed this exact-record integration review. It does not mean zero.
| AC output | |
|---|---|
| Rated AC active power | 9900 Wnominal active AC output; scope: AC output; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.15 Nominal Active AC power Revision: V1.0.1 · Checked 2026-10-02 |
| Maximum AC apparent output | 9900 VAmaximum apparent AC output; scope: AC output; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.15 Max. apparent AC power Revision: V1.0.1 · Checked 2026-10-02 |
| Connection phases | 1Official exact-model/family phase identity: single-phase. For North-American split-phase, the literal split-phase descriptor is retained rather than converted to a false phase count. No grid-approval inference. Official source ↗ · manual title/scope “G Series Single-phase Inverter”; Scope of Validity exact -VB model list Revision: V1.0.1 · Checked 2026-10-02 |
| PV input & tracking | |
| Independent MPPT trackers | 2independent MPP trackers; scope: inverter; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 No. of MPP trackers Revision: V1.0.1 · Checked 2026-10-02 |
| MPPT operating window minimum | 60 Voperating MPPT range; scope: MPPT; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 MPPT voltage range; canonical min bound from source range Revision: V1.0.1 · Checked 2026-10-02 |
| MPPT operating window maximum | 550 Voperating MPPT range; scope: MPPT; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 MPPT voltage range; canonical max bound from source range Revision: V1.0.1 · Checked 2026-10-02 |
| DC operating voltage minimum | Unknown |
| DC operating voltage maximum | Unknown |
| Maximum PV input voltage | 600 Vmaximum DC voltage; scope: inverter; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 Max. DC voltage Revision: V1.0.1 · Checked 2026-10-02 |
| Maximum input current per tracker/input | 20 / 32 Amaximum input current; scope: input A/input B; raw source cell retained: 20/32; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 Max. input current (A/B) Revision: V1.0.1 · Checked 2026-10-02 |
| Maximum PV short-circuit current | 26 / 42 Amaximum short-circuit current; scope: input A/input B; raw source cell retained: 26/42; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.14 Max. short circuit current (A/B) Revision: V1.0.1 · Checked 2026-10-02 |
| Efficiency & environment | |
| Maximum conversion efficiency | 97.8 %maximum conversion efficiency; scope: efficiency; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.16 Max. efficiency Revision: V1.0.1 · Checked 2026-10-02 |
| European efficiency | 97.4 %European efficiency; scope: efficiency; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.16 Euro-efficiency Revision: V1.0.1 · Checked 2026-10-02 |
| Operating ambient temperature minimum | -25 °Cambient range and derating threshold; scope: environment; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.17 Operating temperature range; canonical min bound from source range Revision: V1.0.1 · Checked 2026-10-02 |
| Operating ambient temperature maximum | 60 °Cambient range and derating threshold; scope: environment; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.17 Operating temperature range; canonical max bound from source range Revision: V1.0.1 · Checked 2026-10-02 |
| Enclosure protection | IP65ingress protection rating; scope: enclosure; Exact model/market manufacturer evidence; no compatibility, string-sizing, grid or safety approval. Official source ↗ · manual p.17 Ingress Protection Revision: V1.0.1 · Checked 2026-10-02 |
| Surge protection | Unknown |
| Warranty | |
| Warranty and eligibility | Unknown |
Comparison category basis
Official exact-model/family evidence supports source category 'PV string inverter'; normalized only to the allowed comparison category 'string'.
Generic artwork is presentation-only and is not hardware, compatibility, dimension or electrical evidence.