Preparing The Dc Connection - Kaco blueplanet 29.0 TL3 Operating Instructions Manual

Electrical connection
Authorised electrician
NOTE
EN EN
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 42).
For questions regarding the appropriate type, please contact the installer or our KACO new energy
customer service.
NOTE
If the cable impedance is high (i.e. long grid-side cables), the voltage at the grid terminals of the
inverter will increase during feed-in to the grid. The inverter monitors this voltage. If this exceeds the
country-specific grid overvoltage limit value, the inverter switches off.
›
7.5

Preparing the DC connection

7.5.1 Configuring the DC plug connector
The unit versions M and XL differ in the DC connection area. Pre-configured DC plug connectors are required for
connection in the XL version.
1
1
15
3
5
6
Figure 28: Insert wires
Key
1 Wire for DC connection
2 Spring
3 Insert
4 Sleeve
Configuring the DC plug connector
NOTE: Before proceeding with the isolation ensure that you do not cut any individual wires.
1. Isolate wire for DC connection by 15 mm.
2. Insert isolated wire with twisted ends carefully up to the end stop.
NOTE: Wire ends must be visible in the spring.
3. Close the spring so that the spring latches.
4. Slide insert into sleeve.
5. Tighten cable fitting with the help of a 15 mm fork wrench applying a torque of 2 Nm.
6. Join insert with contact plug.
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
3
4
Figure 30: Check fastening
5 Cable fitting
6 Contact plug
7 Coupling
Operating Instructions KACO blueplanet 29.0TL3
7