Solar Lattice

Product

CPS SCA25KTL-DO/US-208

ID
prod:chint-sca-25ktl-208
IRI
https://solarlattice.org/kb/prod/chint-sca-25ktl-208
Status
active
Also known as
SCA 25 KTL DO US 208, SCA25KTL-DO/US-208
Category
Inverters
Make
chint
Product level
family
Model number
SCA25KTL-DO/US-208

The CPS SCA25KTL-DO/US-208 is a transformerless three-phase string inverter from CHINT Power Systems, built for 208 VAC grid connections. It takes up to 1000 VDC at the input, runs over a DC operating range of 200-950 VDC and starts at 330 V and 80 W. Its MPPTs can run independently or be combined in parallel. It delivers up to 69.5 A at 208 VAC and 60 Hz, with current THD below 3% and a maximum efficiency of 97%. Its listed smart-grid functions are voltage and frequency ride-through, ramp-rate control, specified power factor, Volt-VAr, Freq-Watt and Volt-Watt. You can select the IEEE 1547a2014, CA Rule 21, ISO-NE or HECO grid standard. It has DC arc-fault protection on an arc board. If you see Arcboard Err or ARC Protect, check that the logic connector to the arc board is secure and run the Arc Fault Test from the Settings menu. It communicates over RS485, and you load firmware upgrades through a USB port.

<!-- review notes

Claims

manufactured_by

c1 drafted · lead CHINT POWER SYSTEMS

review note: support check: partial - Model name and 'CPS' appear, but the passages do not state the full manufacturer name CHINT POWER SYSTEMS.

instance_of

c2 drafted · lead Inverter

Transformerless topology

review note: support check: partial - Transformerless topology is stated, but the passages do not say the device is an inverter explicitly (implied by efficiency spec).

max_input_voltage

c3 drafted · lead nominal 1000 V

Conditions: Maximum DC input voltage

nominal_voltage

c4 verified · fact nominal 208 V

Conditions: Rated AC output voltage

verified by: review-workflowverified on: 2026-10-24

rated_output_current

c5 verified · fact nominal 69.5 A

Conditions: Maximum AC output current at 208 VAC

verified by: review-workflowverified on: 2026-10-24

frequency

c6 verified · fact nominal 60 HZ

Conditions: Rated output frequency

verified by: review-workflowverified on: 2026-10-24

efficiency

c7 drafted · lead nominal 97 PERCENT

Conditions: Maximum efficiency, transformerless topology

certified_to

c8 drafted · lead UL 1741 SA proposed

Listed as UL1741-SA Ed. 2

c9 drafted · lead UL 1699B proposed

c10 drafted · lead UL 1998 proposed

c11 drafted · lead IEEE 1547 proposed

c12 drafted · lead FCC Part 15 proposed

implements

c13 drafted · lead Voltage ride-through

c14 verified · fact Frequency ride-through

verified by: review-workflowverified on: 2026-10-24

c15 drafted · lead Ramp rate control

c16 drafted · lead Constant power factor mode

Listed as Specified-PF

c17 drafted · lead Volt-VAr

c18 drafted · lead Frequency-Watt

c19 drafted · lead Volt-Watt

c20 drafted · lead DC arc-fault protection

Arc board with Arc Fault Test available from Settings menu

uses_protocol

c21 drafted · lead RS-485

Referenced by

Data