23.6 × 39.4 × 10.2 in

String inverterCPS (Chint Power Systems)

CPS (Chint Power Systems) CPS SCA25KTL-DO/US-208

String inverter. 1 model, 25 kW AC at 208 V.

UL 1741 SBCEC listed · Oct 12, 2020Rapid shutdownInstalled in 1 SoCal permit

Rated AC power25 kW
CEC weighted efficiency96.5%
Max DC input1,000 V
MPPT trackers3
Warranty10 years

DC input (PV side)

CPS (Chint Power Systems) datasheet · CEC Grid Support Inverter List (Oct 7, 2026) · Cali-Graf calculation

Max DC input voltage1,000 V
MPPT operating range480–850 V
CEC test DC voltages (min / nom / max)480 / 575 / 850 V
MPPT trackers3
Strings per MPPT2
Max short-circuit current135 A
Max / recommended DC power45 kW
Max DC/AC ratio1.8

AC output (grid side)

CPS (Chint Power Systems) datasheet · CEC Grid Support Inverter List (Oct 7, 2026)

Rated AC power25 kW
CEC-measured continuous output25 kW
Grid voltage208 V
Phase3-phase 208 V
AC voltage range183–228 V
Frequency60 Hz
Max continuous output current69.5 A

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026) · CPS (Chint Power Systems) datasheet · NLR SAM inverter library

CEC weighted efficiency96.5%
Peak efficiency97.0%
Night-time standby (tare)2.9 W
Power to start converting79 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) · CPS (Chint Power Systems) datasheet

UL 1741 SB (3rd ed.)Yes — CSA Group, certificate Sep 28, 2022
UL 1741 SA (SA8–SA13)Yes — CSA Group
Firmware tested (SA)V01.04.00
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 Oct 12, 2020)
CEC listedOct 12, 2020
Last CEC updateFeb 1, 2023
Standards listed on the datasheetUL 1741 SA, IEEE 1547, UL 1699B, UL 1998, FCC Part 15, CA Rule 21, NEC 690.12 (rapid shutdown)

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

Safety & protection

CPS (Chint Power Systems) datasheet

Rapid shutdown (NEC 690.12)Yes (NEC 690.12, datasheet)
Arc-fault protection (UL 1699B)Yes — UL 1699B

Monitoring & communication

CPS (Chint Power Systems) datasheet

InterfacesRS485, Modbus, SunSpec, PLC

Size, weight & environment

CPS (Chint Power Systems) datasheet

Dimensions (W × H × D)23.6 × 39.4 × 10.2 in
CoolingFan-cooled
Operating temperature−30 to +60 °C

Warranty

CPS (Chint Power Systems) datasheet

Standard warranty10 years

Panel compatibility & string sizing

CPS (Chint Power Systems) datasheet · NLR PVWatts v8 · CEC PV Module List · Cali-Graf calculation

CityColdest air, °CHottest cell, °C

CPS SCA25KTL-DO/US-208: max DC 1,000 V · MPPT 480–850 V (datasheet)

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	16–20	—
Qcells Q.PEAK DUO BLK ML-G10+ 410	410 W	48.1 V	30.6 V	16–20	—
LONGi LR5-54HABB-400M	400 W	39.3 V	25.3 V	19–25	—
JA Solar JAM54S31-405/MR	405 W	39.4 V	25.5 V	19–25	—
Hyundai Solutions HiN-T440NF(BK)	440 W	40.9 V	27 V	18–24	—
Silfab Solar SIL-440QD	440 W	41.1 V	28 V	18–24	—
Qcells Q.TRON BLK M-G2+ 430	430 W	41.3 V	28 V	18–24	—
Qcells Q.TRON BLK M-G2.H+ 430	430 W	41.3 V	28 V	18–24	—
REC Group REC460AA Pure-RX	460 W	68.8 V	47.1 V	11–14	—
Elin (Sirius PV) ELNSM54M-HC-410	410 W	39.3 V	25.3 V	19–25	—
Qcells Q.TRON BLK M-G2.C+ 430	430 W	41.3 V	28 V	18–24	—
Tesla TSP-420	420 W	43.4 V	27.7 V	18–23	—

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

Apr 2024

Jurisdictions so far

LA County (unincorp.) (1)

Model named in permit

CPS SCA25KTL-DO/US-208

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 25 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
CPS (Chint Power Systems) CPS SCAxxKTL-DO/US-208	25 kW–25 kW	96.5%	480–850 V	Yes	2020	1
SolarEdge SExKUS	9 kW–330 kW	99.0%	100–1,400 V	16 of 19	2025	14
SMA STP xx-US-80	27.5 kW–70 kW	97.5%	300–850 V	Yes	2026	—
Yaskawa Solectria Solar PVI-xxTL-208	25 kW–50 kW	96.5%	200–850 V	Yes	2025	—
Solis (Ginlong Technologies) S6-GC30K-LV-US	30 kW–30 kW	97.0%	340–680 V	Yes	2025	—

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

About CPS (Chint Power Systems)

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerCPS (Chint Power Systems)
Listed in CEC asChint Power Systems America
Websitechintpower.com
Models on CEC lists175

Other series

CPS SCAxxKTL-DO/US-480 · 3 permitsCPS SCAxxKTL-DO-R/US-480 · 1 permitsSCAxxK-T-US-208SCAxxxK-T-US-480SCHxxxK-T-US-480SCHxxxK-T-US-600CPS SCHxxxKTL-DO/US-800CPS SCHxxxKTL-DO/US-480

Questions & answers

How efficient is the CPS (Chint Power Systems) CPS SCAxxKTL-DO/US-208?

The California Energy Commission lists a weighted efficiency of 96.5% for CPS (Chint Power Systems) CPS SCAxxKTL-DO/US-208 models, measured at six power levels and three DC voltages. The datasheet states a peak efficiency of 97.0%.

Is the CPS (Chint Power Systems) CPS SCAxxKTL-DO/US-208 certified to UL 1741 SB?

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

What is the CPS SCA25KTL-DO/US-208’s DC input voltage range?

Max DC input voltage is 1,000 V per the datasheet. MPPT operating range 480–850 V. CEC tested it at 480–850 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.
CPS (Chint Power Systems) — manufacturer datasheet “25kW 208V, 1000Vdc String Inverters for North America”.
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) (Apr 2024). 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).