Installation Video - Huawei SUN2000P-450W-P2 Quick Start Manual

The optimizer uses Staubli MC4 DC connectors. Ensure that the DC connectors to be connected

are of this model. If the DC connectors to be connected are not of the Staubli MC4 model, the
connector compatibility report and third-party lab (TUV, VED, or Bureau Veritas) report from
the DC connector manufacturer must be available. Using incompatible DC connectors may
result in serious consequences. The resulting device damage is beyond the warranty scope.
The optimizer is not supported in the pure off-grid ESS networking. Otherwise, the system may

fail to start.
Partial configuration scenario: The total open-circuit voltage of the PV modules in a PV string

cannot exceed the maximum input voltage of the solar inverter under any condition.
The information in this document is subject to change without notice. Every effort has been

made in the preparation of this document to ensure accuracy of the contents, but all
statements, information, and recommendations in this document do not constitute a
warranty of any kind, express or implied.
Only qualified and trained electrical technicians are allowed to operate the device. Operation

personnel should understand the composition and working principles of the grid-tied PV
power system and local regulations.
Carefully read this document prior to installation to get familiar with product information

and safety precautions. Huawei shall not be liable for any consequence caused by violation of
the storage, installation, and operation regulations specified in this document and the solar
inverter user manual.
Use insulated tools when installing the device. For personal safety, wear proper personal

protective equipment (PPE).
If an optimizer does not connect to any other device, connect the OUT+ and OUT– ports of

the optimizer respectively to the IN+ and IN– ports to protect the terminals from water.
It is recommended that the positive and negative cables (PV+/PV–) between the optimizer

and the solar inverter be placed side by side to avoid cable winding.
The input end of the optimizer should be connected to the PV module connection box, and

the output end to the adjacent optimizer or a solar inverter. Do not reversely connect the
input and output cables. Otherwise, the optimizer may be damaged.
The screenshots are for reference only. The actual screens may vary. Local physical layout

using the solar inverter is used as an example. For details about the remote physical layout
using the management system, see the
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Installation Video

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FusionSolar App Quick Guide
9
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