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6
Electrical connection
6.1 Safety
WARNING
WARNING
Danger to life due to lethal voltages!
High voltages which may cause electric shocks are present in the
conductive parts of the inverter. Prior to performing any work on
the inverter, disconnect the inverter on the AC and DC sides
Danger of damage to electronic components due to electrostatic
discharge.
Take appropriate ESD precautions when replacing and installing
the inverter.
6.2 Wiring AC Output
Ø
You must install a separate single-phase circuit-breaker or
other load disconnection unit for each inverter in order to
ensure that the inverter can be safely disconnected under
load.
NOTE :
The inverter has the function of detecting residual current and
protecting the inverter against residual current. If your inverter
has to equip a AC breaker which has the function of detecting
residual current ,you must choose a AC breaker with the rating
residual current more than 300mA.
We suggest you choice the AC breaker rating current in this table:
we recommend electrical connection as follows
Growatt 8000MTLP-S
Growatt 9000MTLP-S
Growatt 10500MTLP-S
64A/230V
64A/230V
64A/230V
A
B
C
D
E
F
Position
Description
PV modules
DC load circuit breaker
Inverter
AC load circuit breaker
Energy meter
Utility grid
The AC wiring step:
1. The grid connection is made using 3 wires (L, N, and PE).
2.Unscrew the plastic nut of the AC waterproof cover counterclockwise, pull out the
three rubber plugs, pass the three wires through the three holes on the waterproof
cover, then crimp the OT terminal on the other end of the wire and screw the plastic
nut. But don't have to screw it completely, as shown below.
3.The wires of the pressed terminal are correspondingly locked to the AC Output
terminal of the inverter in sequence, as shown below.
4.Lock the AC waterproof cover to the inverter casing and tighten the plastic nut
clockwise, as shown below.
