Kaco blueplanet 40.0 TL3, Instruction Manual, Page: 18 / 52

Installing the inverter
Page 18 Installation Instructions KACO blueplanet 32.0 TL3 / 40.0 TL3 / 50.0 TL3
7.3 Making the electrical connection
ACTIVITY
Cables to the AC and DC screw terminals must be re-tightened at regular intervals to the required torque.
Make the connection to the PV generator as well as the grid connection via the PCB terminals in the connection area of
the inverter. Note the following conductor cross-sections:
AC connection
(M1/M3) DC connection
(M1) DC connection
(M3)
Max. conductor cross-section without wire
sleeves
1 AWG / 50 mm² - 8 AWG / 10 mm²
Min. conductor cross-section with wire sleeves 3 AWG / 35 mm² - 8 AWG / 10 mm²
Max. conductor cross-section with cable shoe - 0 AWG / 70mm² with
M8 ring cable lug
-
Length of insulation to be stripped off 0.944 In / 24 mm 0.984 In / 25 mm 0.984 In / 25 mm
Tightening torque 2.5-4 Nm 2.5 Nm 2.5 Nm
Fuses
Overvoltage conductor Built-in, type II
3
2
1
L1 L2 L3 N GR
Y3~+N 277/480V 60Hz
PV- PV+
L1 L2 L3 N GR
Y3~+N 277/480V 60Hz
3
2
1
+ I - + I -
PV2
+ I -
PV1
PV3
Figure 10: Electrical connection (M1 Model) Figure 11: Electrical connection (M3 Model)
Key
1 AC connection terminals 3 DC connection terminals
2 N; Ground, (HOT,GND)
7.3.1 Connecting the inverter to the power grid
The power connection wires are connected to the AC terminal on the left of the connection area (see Figure 10 on page
18).
DANGER
Risk of fatal injury due to electric shock
Severe injury or death will result if the live connections are touched.
› Switch off all power sources to the inverter before you insert the grid power cable into the unit.
› Make sure that the device is isolated from the public power supply and the system power supply before
starting work.