Preparing The Dc Connection - Kaco blueplanet 50.0 TL3 S Operating Instructions Manual

Electrical connection
Authorised electrician
Making the grid connection (4-core connection to TN-C system)
EN EN
Insert L1, L2, L3, PEN through the cable fitting into the AC connection
area.
1. Connect cables in accordance with the labels on the PCB terminals
(Figure 27).
2. Check for secure fit of all connected cables in accordance with the
tightening torque (see Table 5 on page 19).
3. Tighten the cable fitting.
» The inverter is now connected to the power grid.
NOTE
An AC-side disconnection unit must be provided during the final installation stage. This cut-off
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
current circuit breaker must be used. If the type A is used, the insulation threshold must be set to
greater than/equal to (≥) 200kOhm in the "Parameters" menu (section 8.3 on Page 43).
For questions regarding the appropriate type, please contact the installer or our KACO new energy
customer service.
NOTE
When the line resistance is high, i.e. long cables on the grid side, the voltage at the grid terminals of
the inverter will increase in feed-in mode. The inverter monitors this voltage. If this exceeds the
country-specific grid overvoltage limit value, the inverter switches off.
›
7.4

Preparing the DC connection

7.4.1 Configuring the DC connector (XL version)
1
1
15
3
5
6
Figure 28: Insert wires
Key
1 Wire for DC connection
2 Spring
3 Insert
4 Sleeve
Page 22
Ensure that the cable cross-sections are sufficiently large or that the cable lengths are sufficiently
short.
2
4
2
Figure 29: Slide insert into sleeve
Figure 27: 4-pole connection
3
4
Figure 30: Check fastening
5 Cable fitting
6 Contact plug
7 Coupling
Operating instructions KACO blueplanet 50.0 TL3 S/Basic/M/XL
7