Huawei SUN2000-25KTL-M5

Other manuals for Huawei SUN2000-25KTL-M5

Questions and Answers:

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Deborah ChavezAug 30, 2025
Why is my Huawei SUN2000-25KTL-M5 Inverter showing an output overcurrent error?
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  Ryan SanchezAug 30, 2025
  An output overcurrent error on your Huawei Inverter indicates that the grid voltage has dropped dramatically or the grid is short-circuited, causing the inverter's output current to exceed the limit. The inverter will monitor conditions and try to recover automatically. If the alarm persists and affects energy yield, check for a short circuit in the output. If you can't fix it, contact your dealer or Huawei technical support.
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Lauren ReyesAug 29, 2025
What does it mean when my Huawei SUN2000-25KTL-M5 Inverter displays grid underfrequency?
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  Justin OwensAug 29, 2025
  A grid underfrequency alarm on your Huawei Inverter indicates that the power grid frequency is lower than the local power grid code requirements. If the alarm occurs occasionally, it might be due to a temporary grid issue, and the inverter should recover automatically. If the alarm persists, verify that the power grid frequency is within the acceptable range. If it is not, contact the local power operator. If the frequency is within range, you can modify the grid underfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator.
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Jacob NobleAug 28, 2025
What to do if Huawei SUN2000-25KTL-M5 Inverter shows AFCI self-check failure?
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  Jaclyn SummersAug 29, 2025
  If your Huawei Inverter shows an AFCI self-check failure, turn off both the AC output switch and the DC input switch. Wait for 5 minutes, then turn them back on. If the alarm continues, contact Huawei technical support.
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Lauren RogersSep 12, 2025
How to fix High string input voltage on Huawei SUN2000-25KTL-M5?
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  Daniel ThomasSep 12, 2025
  If your Huawei Inverter displays 'High string input voltage', it means the PV array is not configured correctly. Too many PV modules are connected in series, causing the PV string open-circuit voltage to exceed the inverter's maximum operating voltage. Reduce the number of PV modules connected in series until the PV string open-circuit voltage is within the limit. The alarm should then disappear.
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Mary DurhamSep 15, 2025
What does Abnormal residual current mean on Huawei SUN2000-25KTL-M5 Inverter?
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  Ricky GuzmanSep 15, 2025
  If your Huawei Inverter displays 'Abnormal residual current', it indicates that the insulation impedance on the input side to PE has decreased during operation. If the alarm occurs accidentally, it could be a temporary issue with the external power cable, and the inverter should recover automatically. If the alarm persists or lasts a long time, check the impedance between the PV string and ground to ensure it's not too low.
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Luis MannSep 22, 2025
What causes Protection upon Communication Failure on Huawei Inverter?
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  Alison ThompsonSep 22, 2025
  If your Huawei Inverter displays 'Protection upon Communication Failure', it means communication was lost for too long, triggering the protection function. Check the communication cable connection. Once communication is restored, the device will recover upon receiving a scheduling command. If this protection isn't needed, you can disable it.
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branchhollyAug 27, 2025
Why is my Huawei SUN2000-25KTL-M5 showing abnormal grounding?
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  Monica WarrenAug 27, 2025
  An abnormal grounding error on your Huawei Inverter indicates that the neutral wire or PE cable isn't connected, or the output mode is set incorrectly. To fix this, power off the inverter first (turn off the AC and DC switches and wait). Then: 1. Check the PE cable connection. 2. If connected to a TN grid, check the neutral wire connection and voltage to ground. 3. After powering on, ensure the inverter's output mode matches the cable connection mode.
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Tiffany ButlerAug 26, 2025
What to do if Huawei Inverter displays DC arc fault?
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  Travis HarrisAug 27, 2025
  A DC arc fault on your Huawei Inverter means the PV string power cables are arcing or have poor contact. Check the PV string cables to ensure they are not arcing and are properly connected.
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Brent HarringtonAug 26, 2025
What causes grid undervoltage on Huawei Inverter?
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  harcherAug 26, 2025
  A grid undervoltage error on your Huawei Inverter means the power grid voltage is too low, or the low voltage duration exceeds the LVRT specified value. Here's how to handle it: 1. If it's occasional, it might be a temporary grid issue; the inverter should recover automatically. 2. If it persists, check if the grid voltage is within range and contact the local power operator if it's not. If it is, you can modify the grid undervoltage protection threshold via the app, SmartLogger, or NMS, with the power operator's consent. 3. If it continues, inspect the AC circuit breaker and AC output power cable.
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Julie BennettAug 25, 2025
How to resolve high string input voltage on a Huawei Inverter?
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  Dylan PerryAug 26, 2025
  A high string input voltage error on your Huawei Inverter means the PV array isn't properly configured, with too many PV modules connected in series, causing the PV string open-circuit voltage to exceed the inverter's maximum operating voltage. Reduce the number of PV modules connected in series until the PV string open-circuit voltage is at or below the inverter's maximum. The alarm should then disappear.

Huawei SUN2000-25KTL-M5 Specifications

General

Model	SUN2000-25KTL-M5
Rated Output Power	25 kW
Max. DC Voltage	1100 V
Input Voltage Range	200 V - 1000 V
Start Voltage	200 V
MPPT Voltage Range	200 V - 1000 V
Number of MPP Trackers	2
Rated AC Power	25 kW
Max. Apparent AC Power	27.5 kVA
Rated AC Frequency	50 Hz / 60 Hz
Max. Output Current	36 A
Total Harmonic Distortion (THD)	< 3%
Max. Efficiency	98.6%
MPPT Efficiency	99.9%
DC Connection	MC4
Protection Class	IP65
Operating Temperature Range	-25 °C to +60 °C
Relative Humidity (Operating)	0% - 100%
Operating Altitude	4000 m
Display	LED indicators
Protection Level	IP65
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Cooling	Natural convection
Communication	RS485
Cooling Method	Natural convection