Installing The Dc Input Power Cable - Huawei SUN2000L-5KTL Quick Manual

To remove the AC connector, follow the
steps of its installation in reverse order.
Then remove the plug insert as shown
in the right figure.

Installing the DC Input Power Cable

4.4
1. Ensure that the PV string is well insulated to ground.
2. The metal contacts supplied with the DC connectors are either cold forming contacts or stamping
forming contacts. Crimp the metal cold forming contacts using crimping tool UTXTC0005 (Amphenol)
or H4TC0001 (Amphenol). Crimp the metal stamping forming contacts using crimping tool
H4TC0003 (Amphenol, recommended) or H4TC0002 (Amphenol).
3. DC terminal model (cold forming metal terminal): straight male HH4CMD5TM and straight female
HH4CFC5DM; DC terminal model (stamping forming metal terminal): straight male HH4CMD4TMS
and straight female HH4CFD4TMS.
4. The SUN2000L open circuit voltage must always be lower than or equal to 600 V DC.
5. Before installing the DC input power cable, label the cable polarities correctly to ensure correct cable
connections.
6. Use the positive and negative metal terminals and black DC connectors supplied with the inverter.
Using incompatible positive and negative metal terminals and DC connectors may result in serious
consequences. The caused device damage is not covered under any warranty.
7. If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off the DC
switch immediately or unplug positive and negative connectors. The device may be damaged if you
do not follow the instruction. This damage is not covered under any warranty or service agreement.
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 string to the SUN2000L.
1. Assembling the DC Connector
using metal cold forming contacts
Positive metal terminal
Negative metal terminal
Ensure that the cable will
not be extracted after
crimped.
Ensure that the locking
nut is secured.
Plug insert
8
Positive connector
Negative
Click
connector
Pull the DC input power
cable back to ensure that
it is connected securely.
Ensure that the cables are
correctly connected.