3.15 SSU
Figure 3-30 SSU
(1) Power indicator (2) Alarm indicator (3) Fault indicator
(4) PV positive input port (5) PV negative input port (6) Air intake vent
(7) Handle
Function
The SSU converts DC power into 48 V DC power and provides the maximum
power point tracking (MPPT) function.
Table 3-24 SSU function description
Item
Function
Input protection ● Protects against reverse connection of PV arrays.
● Protects against input overvoltage and undervoltage.
● Protects against input overcurrent.
Output protection ● Protects against output overvoltage.
● Protects against output short circuits.
● Protects against output current limiting.
Overtemperature
protection
Overtemperature protection
PowerCube 1000 (STC, Saudi Arabia, ICC800-A1-C2,
ESC800-A1)
Installation Guide 3 Component
Issue 02 (2021-09-28) Copyright © Huawei Technologies Co., Ltd. 47
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