Huawei SUN2000-50KTL-JPM0 - Page 42

SUN2000-(50KTL-JPM0, 50KTL-JPM1, 63KTL-JPM0)
User Manual
5 Electrical Connections
Issue 01 (2018-09-30)
Copyright © Huawei Technologies Co., Ltd.
36
Model
Recommended Overcurrent Protection
Device Specifications
SUN2000-63KTL-JPM0
125 A
Do not connect loads between the SUN2000 and the AC switch.
The SUN2000 is integrated with a comprehensive residual current monitoring unit (RCMU)
to distinguish fault current from residual current. Upon detecting that the residual current
exceeds the threshold, the SUN2000 immediately disconnects from the power grid.

If an AC switch that can detect residual current is installed outside the SUN2000-50KTL-JPM0, the
residual current value to trigger the switch should be greater than 555 mA.

If an AC switch that can detect residual current is installed outside the SUN2000-50KTL-JPM1, the
residual current value to trigger the switch should be greater than 555 mA.

If an AC switch that can detect residual current is installed outside the SUN2000-63KTL-JPM0, the
residual current value to trigger the switch should be greater than 700 mA.
Wiring Precautions
Ensure that the SUN2000 PE cable is securely connected. Otherwise the repair of the built-in
PID would be affected.

The ground point on the enclosure is preferred to connect to the PE cable for the
SUN2000.

The ground point in the maintenance compartment is mainly used for connecting to the
ground cable included in the multi-core AC power cable.

There are two ground points on the enclosure and you only need either of them.

It is recommended that the ground cable be connected to a nearby ground point. For a
system with multiple SUN2000s connected in parallel, connect the ground points of all
SUN2000s to ensure equipotential connections to ground cables.
Cable Specifications

If you connect a ground cable to the ground point on the enclosure shell, you are advised
to use a three-core (U, V, and W) outdoor cable.

If you connect a ground cable to the ground point in the maintenance compartment, you
are advised to use a four-core (U, V, W, and PE) outdoor cable.

You need to prepare OT-M8 terminals that match the cables.