Huawei SUN2000-20KTL-M5 User Manual

8 Maintenance
D ANGER
● Wear insulated gloves and use insulated tools to prevent electric shocks or
short circuits.
WARNING
● Before performing maintenance, power o the equipment, follow the
instructions on the delayed discharge label, and wait for a period of time as
specied to ensure that the equipment is not energized.
8.1 Powering O the System
Precautions
WARNING
● After the system is powered o, the inverter is still energized and hot, which
may cause electric shocks or burns. Therefore, wait for 5 minutes after power-
o
and then put on insulated gloves to operate the inverter.
● Power o the system before maintaining optimizers and PV strings. Otherwise,
electric shocks may occur when the PV strings are energized.
Procedure
Step 1 Send a shutdown command on the app.
Step 2 Turn o the AC switch between the inverter and the power grid.
Step 3 Set DC SWITCH to OFF.
SUN2000-(12KTL-25KTL)-M5 Series
User Manual 8 Maintenance
Issue 03 (2023-02-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 65

Huawei SUN2000-20KTL-M5 Specifications

General

Model	SUN2000-20KTL-M5
Type	String Inverter
Max. DC Voltage	1100 V
Start Voltage	200 V
Nominal Input Voltage	600 V
Max. Input Current per MPPT	26 A
Number of MPPTs	2
Rated AC Power	20000 W
Max. Efficiency	98.6%
Weight	25 kg
Operating Temperature Range	-25°C to +60°C
Cooling	Natural convection
Protection Degree	IP66
AC Output Frequency	50 Hz / 60 Hz
Max. DC Input Power	30000 W
Max. Output Power	22000 VA
Nominal Output Voltage	230 Vac / 400 Vac
Rated AC Voltage	400 V / 380 V / 220 V
AC Voltage Range	320 V - 480 V
Dimensions (W x H x D)	525 mm x 470 mm x 262 mm
Max. DC Power	30, 000 W