Huawei SUN2000 User Manual

SUN2000-(3.8KTL-11.4KTL)-USL0
User Manual
5 Electrical Connections
Issue 01 (2018-05-21)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
52

Battery short circuits may cause personal injury. The high transient current generated by a
short circuit will release a surge of energy and may even cause fire.

To prevent the risk of electric shock, do not connect or disconnect battery cables when the
SUN2000 is running.

Before connecting battery cables, ensure that the DC switch on the SUN2000 and all the
switches connecting to the SUN2000 are in the OFF position, and the SUN2000 contains
no residual electricity. Otherwise, the high voltage of the SUN2000 and battery may result
in electric shock.

If no battery is connected to the SUN2000, do not remove the waterproofing bolt from the
battery terminal. Otherwise, the IP rating of the SUN2000 will be affected. If a battery is
connected to the SUN2000, set aside the waterproofing bolt. Reinstall the waterproofing
bolt immediately after removing the connector. Otherwise, the high voltage of the battery
terminal may result in electric shock.
A battery switch can be configured between the SUN2000 and the battery to ensure that the
SUN2000 can be safely disconnected from the battery.
Do not connect loads between the SUN2000 and the battery.
The SUN2000 could be damaged, or even become a fire hazard, if the following conditions
are not met:

Overcurrent protection for the battery input circuit is to be provided by the customer.

The battery open-circuit voltage is always lower than or equal to 500 V DC.

The battery cable is connected correctly. That is, the positive and negative terminals of the
battery connect to the positive battery terminal and negative battery terminal on the
SUN2000 respectively.

During the installation of the SUN2000 and battery, the positive or negative terminal of
the battery will be short-circuited to ground if power cables are not installed or routed as
required. In this case, an AC or DC short circuit may occur and damage the SUN2000.
Such damage is not covered by the warranty.

The cabling distance between the battery and the SUN2000 should be less than or equal to
10 meters, ideally less than 5 meters.
Procedure
Step 1 Install the pipe fittings. For details, see 5.2 Installing the Pipe Fittings.
Step 2 Route the battery cable through the conduit and then the fitting of the pipe.

Huawei SUN2000 Specifications

General

Model	SUN2000
Efficiency	Up to 98.6%
MPPT	Yes
Max Input Voltage	1100V
Number of MPPTs	2
Operating Temperature	-25°C to +60°C
Protection Level	IP65
Communication	RS485
Nominal Output Voltage	230V/400V