Huawei SUN2000-33KTL-JP Quick Manual page 8

5. Insert the exposed core wires into the crimping area of the OT terminal and crimp them using
hydraulic pliers.
6. Wrap the wire crimping area with heat shrink tubing or PVC insulation tape.
If heat shrink tubing is used, route the AC output power cable through the heat shrink tubing and
then crimp the OT terminal. Ensure that the area wrapped by the heat shrink tubing does not
exceed the crimping area of the OT terminal.
7. Remove the locking cap from the AC OUTPUT 2 connector at the inverter bottom and then
remove the plug from the cap.
8. Route the AC output power cable through the locking cap and then the AC OUTPUT 2 connector
at the inverter bottom.
9. Connect the AC output power cable to the AC terminal block, and then secure the nuts using a
13 mm socket wrench with an extension pole. If you connect a ground cable to the ground point
in the maintenance compartment, tighten the ground screw using a 10 mm socket wrench with
an extension pole.
10.Use a torque wrench with an open end of 52 mm to tighten the locking cap to a torque of 7.5 N· m,
and seal the waterproof connector.
Ensure that the AC output power cable is connected securely. Otherwise, the inverter may fail to

operate or experience a fault that will damage the terminal block. For example, the inverter may
generate heat during operation due to unreliable connection.
If the SUN2000 is insecurely installed and the AC output power cable bears the pulling force,

ensure that the last cable bearing the force is the PE cable.
 If a waterproof connector is not properly sealed, water or foreign matter could enter the
maintenance compartment and damage the SUN2000.
a. Three-core cable (excluding the ground cable) b. Four-core cable (including the ground cable)
M8
8 N· m
7
M8
8 N· m
M6
5 N· m