Huawei SUN2000-40KTL-M3 User Manual

Figure 8-1 Installing the DC switch locking screw
Step 5 Turn o the DC switch (if any) between the inverter and PV strings.
----End
8.2 Routine Maintenance
To ensure that the inverter can operate properly for a long term, you are advised
to perform routine maintenance on it as described in this section.
CA UTION
Power o the system before cleaning the system, connecting cables, and checking
grounding reliability.
Table 8-1 Maintenance checklist
Check Item
Check Method Maintenance
Interval
System
cleanliness
Check whether the heat sinks are
blocked or dirty.
Once every 6 to 12
months
System
running status
● Check whether the inverter is
damaged or deformed.
● Check whether the inverter
generates abnormal sound during
operation.
● Check whether all inverter
parameters are correctly set during
operation.
Once every 6
months
Electrical
connections
● Check whether cables are
disconnected or loose.
● Check whether cables are damaged,
especially whether the cable sheath
that contacts a metal surface is
damaged.
6 months after the
rst commissioning
and once every 6 to
12 months after that
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 8 Maintenance
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. 81

Huawei SUN2000-40KTL-M3 Specifications

General

Max. Efficiency	98.7%
European Efficiency	98.4%
Max. Input Voltage	1100 V
MPPT Operating Voltage Range	200 V - 1000 V
Max. Input Current per MPPT	26 A
Number of MPPTs	4
Rated Output Power	40000 W
Rated AC Voltage	400 V
Rated AC Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Total Harmonic Distortion (THD)	<3%
DC Reverse-Polarity Protection	Yes
AC Overcurrent Protection	Yes
DC Surge Protection	Type II
AC Surge Protection	Type II
Insulation Monitoring	Yes
Residual Current Monitoring	Yes
DC Switch	Yes
Protection Class	IP66
Operating Temperature Range	-25°C to +60°C
Relative Humidity (Operating)	0% - 100%
Cooling	Natural Convection
Max. Apparent AC Power	44000 VA
AC Voltage Range	320 V - 480 V
Operating Altitude	4000 m
Display	LED Indicators
Communication	RS485, WLAN
Weight	43 kg
Max. DC Power	60000 W