Huawei SUN2000-45KTL-US-HV-D0 Quick Manual page 13

Connection Through a Waterproof Connector
NOTE
Use copper-core cables that can withstand 105 ° C (221 ° F).
•
•
If you connect a ground cable to the PE point on the chassis, you are advised to use a three-
core (L1, L2, and L3) outdoor copper cable with a cross-sectional area of 4 AWG for each core
wire.
•
If you connect a ground cable to the PE point in the maintenance compartment, you are
advised to use a four-core (L1, L2, L3, and PE) outdoor copper cable with a cross-sectional
area of 4 AWG for each core wire.
•
OT terminal: M8 (L1, L2, and L3) and M6 (PE).
•
For more details about cable specifications, see the SUN2000-45KTL-US-HV-D0 User Manual.
1. Remove an appropriate length of the jacket and insulation layer from the AC output power cable
using a wire stripper. (Ensure that the jacket is in the maintenance compartment.)
a. Three-core cable (excluding the ground cable)
Core wire
2. Crimp the OT terminal.
3. Route the cable through the waterproof connector.
4. Land the AC output power cable in the terminal block, and tighten the nuts with a torque
wrench to achieve a proper torque value.
NOTICE
•
Ensure that AC terminations provide firm and solid electrical connections. Failing to do so may
cause SUN2000 malfunction and damage to its terminal block, even starting thermal events.
•
If the AC output power cables are subject to a pulling force because the inverter is not installed
stably, ensure that the last cable that bears the stress is the PE cable.
a. Three-core cable (excluding the ground cable)
5. Tighten the thread-lock sealing nut and seal the waterproof connector.
Insulation layer Jacket
b. Four-core cable (including the ground cable)
b. Four-core cable (including the ground cable)
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