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Connecting an AC Output Power Cable
Precautions
An AC switch must be installed on the AC side of the SUN2000 to ensure that the SUN2000 can be safely disconnected from the power grid.
Do not connect loads between the SUN2000 and the AC switch.
The SUN2000 is integrated with a comprehensive residual current monitoring unit. Once detecting that the residual current exceeds the threshold, the SUN2000 immediately disconnects itself from the power grid.
- If the external AC switch can perform earth leakage protection, the rated leakage action current should be greater than or equal to 100 mA.
- If multiple SUN2000s connect to the general residual current device (RCD) through their respective external AC switches, the rated leakage action current of the general RCD should be greater than or equal to the number of SUN2000s multiplied by 100 mA.
- A knife switch cannot be used as an AC switch.
Procedure
- Connect the AC output power cable to the AC connector.
- The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute for the PE point on the enclosure.
- Keep the AC output power cable and the PE cable close to each other.
- Keep the AC output power cable and the DC input power cable close to each other.
- Ensure that the cable jacket is inside the connector.
- Ensure that the exposed core is totally inserted into the cable hole.
- Ensure that AC output cable is secured. Failing to do so may cause SUN2000 malfunction or damage to its AC connector.
- Ensure that the cable is not twisted.
Figure 5-7 Assembling an AC connector (three-core wire)Figure 5-8 Assembling an AC connector (two-core wire)- The cable colors shown in the figures are for reference only. Select an appropriate cable according to the local standards.
- For the core installation method and the length for cable stripping, see the instructions on the side of the plug insert.
Figure 5-9 Length for cable stripping - Connect the AC connector to the AC output port.
Ensure that the AC connector is connected securely.
Figure 5-10 Securing an AC connector - Check the route of the AC output power cable.Figure 5-11 Cabling requirements
Follow-up Procedure
Before removing the AC connector, ensure that the DC switch at the bottom of the SUN2000 and all the switches connected to the SUN2000 are OFF.
To remove the AC connector from the SUN2000, perform the operations in reverse order.
Figure 5-12 Removing a plug insert
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