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Fault codes › CPS › CPS SCA25KTL-DO-R/US-480

CPS SCA25KTL-480 Protect0020

Code
Protect0020
Shown as
Grid relay error
Vendor severity
Protection
Page
107
ID
fc:chint-sca-25ktl-480-protect20
IRI
https://solarlattice.org/kb/fc/chint-sca-25ktl-480-protect20
Status
active
Also known as
Protect0020, protect20, CPS Protect0020, Grid relay error
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears after a manual reset drafted · lead

Decoded

May indicate relay failure; look at grid tie relay; do: inverter restart, inverter replacement.

Defined in

The manufacturer's own cause and corrective text is not reproduced here.

Same code in other families

Claims

defined_in

c1 drafted · lead CPS 25kW User Manual Rev 2.1

has_event_class

c2 drafted · lead Fault (device stops or needs intervention)

from the code prefix

indicates

c3 verified · fact Relay failure

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - The code is labelled grid relay error, but relay failure as a failure mode is only implied by the label.

affects

c4 drafted · lead Grid tie relay

has_production_effect

c5 drafted · lead Trip (production stops)

Power cycle needed to clear implies inverter stopped

review note: support check: partial - Power cycle and replacement instructions imply stoppage, but a trip is not stated.

has_recovery

c6 drafted · lead Manual reset (operator restarts or acknowledges)

AC and DC power cycle; replace inverter if fault persists

mitigated_by

c7 drafted · lead Inverter restart

c8 drafted · lead Inverter replacement

Only if restart does not clear the fault

applies_to

c9 drafted · lead CPS SCA25KTL-DO-R/US-480

Data