Huawei SUN2000-36KTL Quick Manual page 10

Positive and negative metal terminals
WARNING
• Ensure that the PV string is well insulated to the ground.
• Before inserting the positive and negative connectors respectively into the positive and negative
DC input terminals of the inverter, check that the DC voltage does not exceed 1100 V DC using
a multimeter and that the cables are connected correctly. Otherwise, the inverter will be
damaged.
NOTICE
1. Use the Amphenol HH4 DC input terminals delivered with the inverter.
2. Before connecting DC input power cables, label the cable polarities to ensure correct cable
connections. If the cables are connected incorrectly, the inverter may be damaged.
3. Insert the crimped metal terminals of the positive and negative power cables into the
appropriate positive and negative connectors. Then pull the DC input power cables to ensure
that they are connected securely.
4. Connect the positive and negative connectors to the appropriate positive and negative DC input
terminals. Then pull the DC input power cables to ensure that they are connected securely.
5. If the DC input power cables are reversely connected and the DC switches are ON, do not turn
off the DC switches immediately. Otherwise, the inverter may be damaged and the damage is
beyond the warranty scope. Wait until the PV string voltage reduces to the safety range (below
60 V DC). Then, turn off the two DC switches, remove the positive and negative connectors,
and rectify the connection.
Positive metal terminal
Negative metal terminal
Recommended: PV cable
(PV1-F) with a cross-
sectional area of 4 mm
Positive metal terminal (female)
Negative metal terminal (male)
H4TC0001 (Amphenol)
Ensure that the cable
cannot be removed after
crimped.
2
.
Ensure that cables
are connected
correctly and that
the voltage does not
exceed 1100 V DC.
9
Positive connector
Negative
connector
Click
Ensure
that the
locking nut
is secured.
H4TW0001
(Amphenol)