Huawei SUN2000-20KTL-M2 Quick Guide

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SUN2000-(8KTL-20KTL)-M2

Quick Guide

HUAWEI TECHNOLOGIES CO., LTD.

Issue: 03

Part Number: 31500BCA

Date: 2020-07-10

Table of Contents

Other manuals for Huawei SUN2000-20KTL-M2

User Manual136 pages

Questions and Answers:

K
Kristen JamesAug 27, 2025
What causes Low Insulation Resistance in Huawei SUN2000-20KTL-M2 Inverter and how to fix it?
- K
  Kelly CareyAug 27, 2025
  If your Huawei Inverter is showing a 'Low Insulation Resistance' error, it means that the PV arrays are short-circuited with PE, or the ambient air of the PV array is damp, leading to poor insulation between the PV array and the ground. Here's how to address it: 1. Check the output resistance of the PV array to ground. Rectify any short circuits or insulation issues. 2. Ensure the PE cable of the SUN2000 is correctly connected. 3. If the low impedance persists in cloudy or rainy conditions, log in to the mobile app, SmartLogger, or NMS to reset the insulation impedance protection threshold.
M
mollydurhamAug 27, 2025
How to fix String Reversed error on Huawei SUN2000-20KTL-M2?
- T
  theresa62Aug 27, 2025
  If your Huawei Inverter displays a 'String Reversed' error, it means the PV string is reversely connected. To fix this, wait until night when solar irradiance declines and the PV string current drops below 0.5 A. Then, set the DC SWITCH to the OFF position and correct the string polarity.
K
Kaitlyn HannaAug 26, 2025
What to do if my Huawei Inverter shows a Grid Failure?
- F
  frank85Aug 26, 2025
  If your Huawei Inverter reports a grid failure, it means that the power grid has experienced an outage, the AC circuit is disconnected, or the AC switch is off. To resolve this, first, check the AC voltage. Second, check whether the AC circuit is disconnected or the AC switch is off.
D
dorisvasquezAug 25, 2025
How to fix Low Insulation Resistance on Huawei Inverter?
- C
  christinaleonAug 26, 2025
  If your Huawei Inverter displays a 'Low Insulation Resistance' error, it could be due to the PV array being short-circuited to ground or the power cable not being well insulated, especially in a moist environment. Here's what you should do: * Check the impedance between the PV array output and PE, and eliminate any short circuits or points of poor insulation. * Ensure the PE cable for the inverter is correctly connected. * If you're certain the impedance is less than the preset protection threshold in cloudy or rainy conditions, you can log in to the mobile app, SmartLogger, or NMS to reset the insulation impedance protection threshold.
R
ryan19Aug 25, 2025
What to do if the Huawei SUN2000-20KTL-M2 Upgrade Failed or Software Version Unmatch?
- K
  Kara AdamsAug 25, 2025
  If your Huawei Inverter displays 'Upgrade Failed or Software Version Unmatch,' it means the upgrade process did not complete successfully. To resolve this: 1. Try performing the upgrade again. 2. If the upgrade fails multiple times, contact your dealer or Huawei technical support.
K
Karen AndersonSep 12, 2025
What causes String Reverse Connection on Huawei SUN2000-20KTL-M2 Inverter?

Huawei SUN2000-20KTL-M2 Specifications

General

Model	SUN2000-20KTL-M2
Type	String Inverter
Max. efficiency	98.6%
European efficiency	98.3%
Max. input voltage	1100 V
Max. input current per MPPT	26 A
Number of MPPTs	2
Rated output power	20, 000 W
Start Voltage	200 V
MPPT Voltage Range	200 V - 1000 V
Max. AC Power	22, 000 VA
Output Frequency	50 Hz / 60 Hz
Dimensions (W x H x D)	525 x 470 x 262 mm
Weight	25 kg
Operating Temperature Range	-25°C to +60°C
Cooling Method	Natural Convection
Protection Degree	IP65
Rated AC Voltage	230 V / 400 V
Max. Input Power	30, 000 W
Max. Output Power	22, 000 W
Rated Output Voltage	230 V / 400 V

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