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Fault codes › Canadian Solar › CSI 23/28KTL-CT/US-480

Canadian Solar 23-28KTL-CT ARC Protect

Code
ARC Protect
Vendor severity
Protection
Page
74
ID
fc:canadian-solar-23-28ktl-ct-arcprotect
IRI
https://solarlattice.org/kb/fc/canadian-solar-23-28ktl-ct-arcprotect
Status
active
Also known as
ARC Protect, arcprotect, Canadian Solar ARC Protect
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears after a manual reset drafted · lead

Decoded

Reports arc fault detected; may indicate arc fault; look at DC cable, arc fault detection board; do: DC wiring check, contact manufacturer service.

What can be behind Arc fault detected

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

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

Same condition on other equipment

ABB / FIMER
ABB / FIMER PVS-166-175-TL E050, ABB / FIMER PVS-60-TL E050, ABB / FIMER UNO-DM-3.3-5.0-PLUS E050, ABB / FIMER UNO-DM-6.0-PLUS E050
Canadian Solar
Canadian Solar 25-40K-T480GL01 ARC-FAULT, Canadian Solar 25-40KTL-GS-FL ARC-FAULT, Canadian Solar 50-66K-T480GL01 ARC-FAULT, Canadian Solar 50-66KTL-GS-FL ARC-FAULT, Canadian Solar 75-100K-T480GL02 ARC-FAULT
Solis
Solis 1P-4G-US ARC-FAULT, Solis RHI-1P-HV ARC-FAULT, Solis S5-GC ARC-FAULT, Solis S6-EH1P ARC-FAULT, Solis S6-EH2P ARC-FAULT, Solis S6-EH3P30-60K ARC-FAULT, Solis S6-EH3P75-150K ARC-FAULT, Solis S6-GC ARC-FAULT, Solis S6-GU ARC-FAULT
Yaskawa Solectria
Yaskawa Solectria PVI-14-20TL Arc Protect, Yaskawa Solectria PVI-25TL-R Arc Protect, Yaskawa Solectria PVI-TL Arc Protect, Yaskawa Solectria XGI-1500 CRIT-4

Claims

defined_in

c1 drafted · lead CSI 23-28KTL-CT Inverter Installation Manual

has_event_class

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

from the Type column

reports

c3 drafted · lead Arc fault detected

indicates

c4 verified · fact Arc fault

verified by: review-workflowverified on: 2026-10-23

affects

c5 drafted · lead DC cable

c6 drafted · lead Arc fault detection board

mitigated_by

c7 drafted · lead DC wiring check

c8 drafted · lead Contact manufacturer service

has_production_effect

c9 drafted · lead Trip (production stops)

review note: support check: partial - The general text says the inverter shuts down on faults, but the row does not explicitly state production stops.

has_recovery

c10 drafted · lead Manual reset (operator restarts or acknowledges)

Operator clears the arc fault via menu command; inspect PV wiring, then service.

applies_to

c11 drafted · lead CSI 23/28KTL-CT/US-480

Data