Installing Dc Input Power Cables - Huawei SUN2000-4.95KTL-NHL2 Quick Manual

To remove the AC connector,
perform the operations in
reverse order of installing the
AC connector. Then, remove
the plug insert, as shown in
the following figure.

Installing DC Input Power Cables

3.5
1. Ensure that the PV module output is well insulated to ground.
2. Use the Staubli MC4 positive and negative metal terminals and DC connectors supplied with
the solar inverter. Using incompatible positive and negative metal terminals and DC
connectors may result in serious consequences. The caused device damage is not covered
under warranty.
3. The DC input voltage of the solar inverter must not exceed maximum input voltage.
4. Before installing DC input power cables, label the cable polarities to ensure correct cable
connections.
5. If DC input power cables are reversely connected, do not operate the DC switch as well as
positive and negative connectors immediately. Failing to do so may cause device damage,
which is not covered under warranty. Wait until the solar irradiance declines at night and the
PV string current reduces to below 0.5 A, and then turn off the DC switch and remove the
positive and negative connectors. Correct the string polarity before reconnecting the PV string
to the solar inverter.
Plug insert
6
AC output port (AC)