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Huawei SUN2000-100KTL-USH0 2011

Code
2011
Shown as
String Reverse Connection
Vendor severity
Major
Page
118
ID
fc:huawei-sun2000-100ktl-ush0-2011
IRI
https://solarlattice.org/kb/fc/huawei-sun2000-100ktl-ush0-2011
Status
active
Also known as
2011, Huawei 2011, String Reverse Connection
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears not stated

Decoded

Reports reverse polarity; look at PV array; confirm with string polarity measurement; do: string polarity correction.

What can be behind Reverse polarity

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 E046, ABB / FIMER PVS-60-TL E046, ABB / FIMER TRIO-20.0-27.6-TL E046, ABB / FIMER UNO-DM-3.3-5.0-PLUS E046, ABB / FIMER UNO-DM-6.0-PLUS E046
CPS
CPS SCA25KTL-208 PVxReverse, CPS SCA25KTL-480 PV Reverse, CPS SCA36KTL PVxReverse, CPS SCA50-100K-T Protect0350, CPS SCA50-100K-T Protect0410, CPS SCA50-100K-T Protect0430, CPS SCA50-100K-T Protect0810, CPS SCA50-100K-T Protect0840, CPS SCA50-100K-T Protect0870, CPS SCA50-60KTL PVxReverse, CPS SCH100-125KTL PV Reverse, CPS SCH125KTL-AIO PV Reverse, CPS SCH350KTL Reverse PVx electrode
Canadian Solar
Canadian Solar 125K-T600GL02 Reve-DC, Canadian Solar 185-255K Reve-DC, Canadian Solar 23-28KTL-CT PV1 (2) Reverse, Canadian Solar 75-100K-T480GL02 Reve-DC
Fronius
Fronius Symo 311
Huawei
Huawei SUN2000-25-30KTL-US 120-125, Huawei SUN2000-45KTL-US-HV-D0 120-127
SMA
SMA SB-US-40 6803, SMA SB-US-40 6903, SMA SB-US-40 8503, SMA SB-US-41 6803, SMA SB-US-41 6903, SMA SB-US-41 8503, SMA SBSE-US-50 4013, SMA SBSE-US-50 4014, SMA SBSE-US-50 4015, SMA SBSE-US-50 4016, SMA SBSE-US-50 4017, SMA SBSE-US-50 8503, SMA SBSE-US-50 9342, SMA SC-CP-XT 4003, SMA SI-US W851, SMA SI-US W861, SMA SI-US W871, SMA SI-US W881
Schneider Electric
Schneider Electric CL125 028
Solis
Solis 3P-5G-US Reve-DC, Solis S5-GC Reve-DC, Solis S6-GC Reve-DC, Solis S6-GU Reve-DC
Sungrow
Sungrow SG-CX-US 448-471, Sungrow SG-CX-US 532-547, Sungrow SG-CX-US 564-571, Sungrow SG200HX 208, Sungrow SG200HX 212, Sungrow SG200HX 264-283, Sungrow SG200HX 28, Sungrow SG200HX 29, Sungrow SG200HX 448-479, Sungrow SG200HX 532-547, Sungrow SG200HX 564-579, Sungrow SG250HX 208, Sungrow SG250HX 212, Sungrow SG250HX 264-283, Sungrow SG250HX 28, Sungrow SG250HX 29, Sungrow SG250HX 448-479, Sungrow SG250HX 532-547, Sungrow SG250HX 564-579, Sungrow SG350HX 208, Sungrow SG350HX 212, Sungrow SG350HX 264-283, Sungrow SG350HX 28, Sungrow SG350HX 29, Sungrow SG350HX 448-479, Sungrow SG350HX 532-547, Sungrow SG350HX 564-579
Yaskawa Solectria
Yaskawa Solectria PVI-14-20TL PV1 (2) Reverse, Yaskawa Solectria PVI-25TL-R PV Reverse, Yaskawa Solectria PVI-TL PV1 (2) Reverse

Claims

defined_in

c1 drafted · lead Huawei SUN2000-100KTL-USH0 User Manual

has_event_class

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

from the Type column

reports

c3 verified · fact Reverse polarity

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

affects

c4 drafted · lead PV array

detected_by

c5 drafted · lead String polarity measurement

review note: support check: partial - The passages say to check whether the string is reversely connected, which is not clearly a polarity measurement method.

mitigated_by

c6 drafted · lead String polarity correction

Correct only at night once string current is low and DC switches are off.

has_production_effect

c7 drafted · lead Trip (production stops)

applies_to

c8 drafted · lead Huawei SUN2000-100KTL-USH0

Data