7.4
Connecting the device to the power grid
7.4.1
Prepare the grid connection
TN-S-System, TN-C-S-System, TT-System
↻
Connection cable with 5 strands is provided on the device.
↻
Nominal grid voltage matches the VAC nom name plate details.
1 Unfasten the cable fitting for the AC connection [ W_66].
2 Remove the outer cladding of the AC cables.
3 Push an M8 cable lug onto the PE line.
4 Remove the cover of the AC filter using the 4 screws[ T_15].
5 Unscrew the screws on the contact bridge and remove the contact bridge[
_T20].
6 Insert the AC cables through the cable fitting into the connection area.
7 Strip the AC lines [approx. 25 mm].
»
Make the grid connection.
TN-C system
↻
Connection cable with 4 wires is provided on the device.
↻
Nominal grid voltage matches the VAC nom name plate details.
1 Unfasten the cable fitting for the AC connection [ W_66].
2 Remove the outer cladding of the AC cables.
3 Insert the AC cables through the cable fitting into the connection area.
4 Strip the AC lines [approx. 25 mm].
»
Make the grid connection.
DC-side
AC side
Fig. 16:
Terminals
7.4.2
Make the grid connection
NOTE
An AC- and DC- disconnecter unit must be provided during the final installation stage. This disconnecter
mechanism must be installed so that it can be accessed at any time without obstruction.
NOTE
If a residual current circuit breaker is necessary due to the installation specification, a type A residual cur-
rent circuit breaker must be used.
For questions regarding the appropriate type, please contact the installer or the system manufacturer's
service department.
NOTE
When the line resistance is high, i.e. long cables on the grid side, the voltage drop on the line increases,
and the terminal voltage is higher or lower than the country-specific limit value, the device shuts down.
›
Ensure that the cable cross-sections are sufficiently large or that the cable lengths are sufficiently
short.
KACO blueplanet gridsave 50.0TL3-S
Page 22
EN