Huawei SUN2000-40KTL-M3 User Manual

5 Electrical Connections
5.1 Precautions
D ANGER
When exposed to sunlight, the PV arrays supply DC voltage to the inverter. Before
connecting cables, ensure that all DC SWITCH on the inverter are OFF. Otherwise,
the high voltage of the inverter may result in electric shocks.
D ANGER
● The site must be equipped with qualied re ghting facilities, such as re sand
and carbon dioxide re extinguishers.
● Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
WARNING
● The equipment damage caused by incorrect cable connections is beyond the
warranty scope.
● Only certied electricians are allowed to connect cables.
● Operation personnel must wear PPE when connecting cables.
● Before connecting cables to ports, leave enough slack to reduce the tension on
the cables and prevent poor cable connections.
● Cables must be vertically routed into combiner boxes, PV terminals, and other
wiring terminals to avoid damage caused by horizontal stress on the terminals,
which is not covered under the warranty.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 5 Electrical Connections
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. 37

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