Huawei ACBox2000-21-D-A User Manual page 33

ACBox2000-21-D-A
User Manual (Pan-Europe Edition)
Step 6 Connect the AC input power cable to the AC input terminal block, and then secure them to a
torque of 8 N· m using a 13 mm socket wrench with an extension rod. If you use a four-wire
AC input power cable, connect the ground cable to the ground point and tighten it to a torque
of 8 N· m using a 13 mm socket wrench with an extension rod.
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Ensure that the inverter AC output L1 connects to the ACBox2000 AC input L1, the
inverter AC output L2 connects to the ACBox2000 AC input L2, and the inverter AC
output L3 connects to the ACBox2000 AC input L3. Avoid reverse connection.

Verify that the AC input power cable is connected securely. Otherwise, the device may fail
to operate or experience any fault that will damage the terminal block. For example, the
ACBox2000 in operation may heat up due to unreliable connection. The damage caused
by loose connection of the DC input power cable is beyond the warranty scope.

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Figure 5-8 Connecting an AC input power cable (three core wires)
Issue 01 (2016-12-15)
When you use a three-core cable, you are advised to connect AC input power cable 1 in the sequence
of 1-L3, 1-L2, and 1-L1.
When you use a four-core cable, you are advised to connect AC input power cable 1 in the sequence
of PE, 1-L3, 1-L2, and 1-L1.
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5 Electrical Connections
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