17.7 × 25.2 × 9.6 in

Hybrid inverterFOXESS

FOXESS H1-9.6-US

Name: FOXESS H1-9.6-US
Brand: FOXESS

Hybrid inverter, dc-coupled hybrid (pv + battery). 5 models, 3.8 kW–11.4 kW AC at 240 V.

UL 1741 SBCEC listed · Oct 21, 2022Installed in 1 SoCal permit

Model

Rated AC power9.6 kW
CEC weighted efficiency97.0%
Max DC input600 V
Warranty10 years

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 5 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
H1-3.8-US	3.8 kW	240 V	3.71 kW	3.71 kW	96.0%	204–480 V	Feb 13, 2023	SB
H1-5.7-US	5.7 kW	240 V	5.75 kW	5.75 kW	97.0%	204–480 V	Feb 13, 2023	SB
H1-7.6-US	7.6 kW	240 V	7.72 kW	7.72 kW	97.0%	271–480 V	Feb 13, 2023	SB
H1-9.6-US	9.6 kW	240 V	9.61 kW	9.61 kW	97.0%	257–480 V	Feb 13, 2023	SB
H1-11.4-US	11.4 kW	240 V	11.5 kW	11.5 kW	97.5%	305–480 V	Oct 21, 2022	SB

Some models are also on the CEC Battery Inverter list — one product, two listings.

DC input (PV side)

FOXESS datasheet · CEC Grid Support Inverter List (Oct 7, 2026) · Cali-Graf calculation

Max DC input voltage600 V
CEC test DC voltages (min / nom / max)257 / 380 / 480 V
Start-up voltage100 V
Max / recommended DC power14.4 kW
Max DC/AC ratio1.5

AC output (grid side)

CEC Grid Support Inverter List (Oct 7, 2026) · FOXESS datasheet

Rated AC power9.6 kW
CEC-measured continuous output9.61 kW
Grid voltage240 V
Phasesplit-phase 120/240 V
Frequency57–63 Hz

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026) · FOXESS datasheet · NLR SAM inverter library

CEC weighted efficiency97.0%
Peak efficiency97.6%
Night-time standby (tare)27.23 W
Power to start converting41.2 W

CEC weighted efficiency is measured by an accredited lab at six power levels and three DC voltages — the number to compare between inverters.

Grid & smart-inverter certification

CEC Grid Support Inverter List (Oct 7, 2026) · FOXESS datasheet

UL 1741 SB (3rd ed.)Yes — CSA Group, certificate Jul 12, 2023
UL 1741 SA (SA8–SA13)Yes — CSA Group
Volt-VAr with reactive power priority (SA13)Yes
Freq-Watt / Volt-Watt (SA14–15)Yes
Disable permit service / limit active power (SA17–18)Yes
CSIP (IEEE 2030.5) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)Yes (attested Dec 11, 2023)
Power control system (PCS)Stated in CEC listing (power control system)
CEC listedOct 21, 2022
Last CEC updateFeb 12, 2024
Standards listed on the datasheetUL 1741, UL 1741 SA, IEEE 1547, UL 1699B, UL 62109, UL 1998, FCC Part 15

UL 1741 SB is required for new interconnections in California (Rule 21) since 2026.

Backup power

FOXESS datasheet

Backup output, continuous9.6 kW
Backup surge12,960 VA for 60 s
Backup voltage120 V

Safety & protection

FOXESS datasheet

Arc-fault protection (UL 1699B)Yes — UL 1699B

Monitoring & communication

FOXESS datasheet

InterfacesWi-Fi, Ethernet, RS485, Cellular, SunSpec

Size, weight & environment

FOXESS datasheet

Dimensions (W × H × D)17.7 × 25.2 × 9.6 in
Weight83.8 lb (38 kg)
CoolingNatural convection (no fans)
Operating temperature−25 to +60 °C

Warranty

FOXESS datasheet

Standard warranty10 years

Panel compatibility & string sizing

NLR SAM inverter library · NLR PVWatts v8 · CEC PV Module List · Cali-Graf calculation

CityColdest air, °CHottest cell, °C

H1-9.6-US: max DC 480 V · MPPT 257–480 V (CEC test window)

Most-permitted panels in Southern California

Panel	Power	Voc cold	Vmp hot	Panels per string	Installed together
Qcells Q.PEAK DUO BLK ML-G10.C+ 410	410 W	48.1 V	30.6 V	9–9	—
Qcells Q.PEAK DUO BLK ML-G10+ 410	410 W	48.1 V	30.6 V	9–9	—
LONGi LR5-54HABB-400M	400 W	39.3 V	25.3 V	11–12	—
JA Solar JAM54S31-405/MR	405 W	39.4 V	25.5 V	11–12	—
Hyundai Solutions HiN-T440NF(BK)	440 W	40.9 V	27 V	10–11	—
Silfab Solar SIL-440QD	440 W	41.1 V	28 V	10–11	—
Qcells Q.TRON BLK M-G2+ 430	430 W	41.3 V	28 V	10–11	—
Qcells Q.TRON BLK M-G2.H+ 430	430 W	41.3 V	28 V	10–11	—
REC Group REC460AA Pure-RX	460 W	68.8 V	47.1 V	6–6	—
Elin (Sirius PV) ELNSM54M-HC-410	410 W	39.3 V	25.3 V	11–12	—
Qcells Q.TRON BLK M-G2.C+ 430	430 W	41.3 V	28 V	10–11	—
Tesla TSP-420	420 W	43.4 V	27.7 V	10–11	—

Voltage check only, from CEC panel data and NLR weather for the city. Final design must follow the inverter manual and NEC 690.7.

Installed in Southern California

building permits

Permits name it

Jan 2026

Jurisdictions so far

LA County (unincorp.) (1)

Model named in permit

H1-9.6-US

Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Permits from LA County (unincorp.) come without a contractor license, so they count toward totals but not toward installers. Counts grow as more permit portals are loaded.

Compare with similar 9.6 kW inverters

CEC Grid Support Inverter List (Oct 7, 2026) · building permits

Inverter	Power	CEC weighted eff.	DC test window	UL 1741 SB	Latest CEC	SoCal permits
FOXESS H1-x.x-US	3.8 kW–11.4 kW	97.0%	257–480 V	Yes	2023	1
SolarEdge SExxxxH-US	3 kW–11.4 kW	99.0%	360–480 V	Yes	2025	1,046
Delta Electronics Ex-TL-US	3.33 kW–9.6 kW	97.5%	200–480 V	Yes	2022	28
SolarEdge SExxxxxA-US	3.8 kW–11.4 kW	98.0%	320–500 V	No	2024	18
Growatt MIN xxxxTL-XH-US	2.63 kW–11.4 kW	98.0%	125–480 V	Yes	2021	15

Same type and grid voltage, power range covering this model; same fields from the same sources.

About FOXESS

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerFOXESS
Listed in CEC asFOXESS CO., LTD.
Websitefox-ess.com
Models on CEC lists117

Other series

H3-xx-Plus-US-LH3-xxx-Plus-US-HAIO-H1-x.x-US

Questions & answers

How efficient is the FOXESS H1-x.x-US?

The California Energy Commission lists a weighted efficiency of 96.0–97.5% for FOXESS H1-x.x-US models, measured at six power levels and three DC voltages. The datasheet states a peak efficiency of 97.6%.

What sizes does the FOXESS H1-x.x-US come in?

The CEC list includes 5 models from 3.8 kW to 11.4 kW AC: H1-3.8-US, H1-5.7-US, H1-7.6-US, H1-9.6-US, H1-11.4-US.

Is the FOXESS H1-x.x-US certified to UL 1741 SB?

Yes — the CEC Grid Support Inverter List shows UL 1741 SB for all models.

Can the FOXESS H1-x.x-US be used with a battery?

The CEC lists it as a dc-coupled hybrid (pv + battery).

What is the H1-9.6-US’s DC input voltage range?

Max DC input voltage is 600 V per the datasheet. CEC tested it at 257–480 V DC.

What warranty does it have?

10 years standard (manufacturer datasheet).

Sources

California Energy Commission — Grid Support Inverter List (solar and battery inverters), data as of Oct 7, 2026. Manufacturer-reported, confirmed by CEC against certificates and test reports.
FOXESS — manufacturer datasheet “Split-Phase Hybrid H1&AC1-3.8-US / 5.7 / 7.6 / 9.6 / 11.4”.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
California Energy Commission — PV Module List (module electrical data for the compatibility check).
Building permits — Los Angeles County Public Works (EPIC-LA, unincorporated areas) (Jan 2026). Equipment matched from permit descriptions by model number.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).