7.5.2
Make the grid connection
TN-S system, 5-core connection
1 Run L1, L2, L3, N through the included ferrite (60.0TL3 only).
2 Connect wires in accordance with the labels on the PCB terminals. [See figure
3 Connect terminals "PE" to the equipotential bonding of your lightning protec-
tion system using a 16 mm² wire
3
.
4 Check secure fit of all connected cables.
5 Tighten the cable fitting. [ W_46 / 10 Nm]
»
The device is connected to the power grid.
GY
BK
BN
BU GNYE
L1
L2
L3
N
PE
Fig. 28:
5-pole grid connection
TN-C system
1 Fit the PE terminal (not included in the scope of supply) to the hat rail, note the
cable cross-sections!
2 Run L1, L2, L3 through the included ferrite (60.0 TL3 only).
3 Connect wires in accordance with the labels on the PCB terminals. [See figure
4 Check secure fit of all connected cables.
5 Tighten the cable fitting. [ W_68 / 20 Nm]
»
The device is connected to the power grid.
L3
L2
L1
N PE
GY
BK
BN
BU
GNYE
Fig. 29:
4-pole grid connection
NOTE
An AC-side disconnection unit must be provided during the final installation stage. This disconnector mech-
anism must be installed so that it can be accessed at any time without obstruction.
NOTE
If an external residual current circuit breaker is necessary due to the installation specification, a type A re-
sidual current circuit breaker must be used.
If the type A is used, the insulation threshold must be set to greater than/equal to (≥) 200 kOhm in the
“Parameters” menu [see Menu [See section 9.4.1
For questions regarding the appropriate type, please contact the installer or our KACO new energy cus-
tomer service.
NOTE
When the line resistance is high, i.e. long cables on the grid side, the voltage at the grid terminals of the
device will increase in feed-in mode. If the voltage exceeds the country-specific grid overvoltage limit
value, the device switches off.
›
Ensure that the cable cross-sections are sufficiently large or that the cable lengths are sufficiently
short.
7.6
Connect PV generator to device
The DC connection is intended exclusively for PV generators. Other sources fall within the scope of improper operation
(e.g. batteries).
3
Only connect the overvoltage conductor to a “PE” terminal.
Powador 30.0-72.0 TL3
Page 25
EN