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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
H4TC0001 (Amphenol). Crimp the metal cold stamping contacts using crimping tool H4TC0002
(Amphenol). Choose the crimping tools that fit the metal contact types. Do not mix up the tools.
3. The SUN2000 open circuit voltage must always be lower than or equal to 600 V DC.
4. Before installing the DC input power cable, label the cable polarities correctly to ensure correct
cable connections.
5. Use the positive and negative connectors supplied with the SUN2000.
6. 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 SUN2000.
1. Assembling the DC Connector
Positive metal terminal
Negative metal terminal
Ensure that the cables are
correctly connected.
Plug insert
using metal cold forming contacts
Ensure that the cable will
not be extracted after
crimped.
9
Positive connector
Negative
Click
connector
Pull the DC input power
cable back to ensure that
it is connected securely.
Ensure that the locking
nut is secured.
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