KACO blueplanet 1502xi - Manual (Page 44)

Page 41 41 31000770-02-112609 blueplanet Operating and Installation Instructions 1502xi - 5002xi
Section 8 · blueplanet as Part of a PV Installation
A summary of the components:
DC terminal point:
Two PV strings can be connected in parallel either at a DC terminal point between the solar generator and the inverter or directly on
the inverter (terminals for three strings are provided on the inverter). Of course, you can also connect the strings directly to the solar
generator and then run just one negative and one positive lead to the inverter. External fusing may be required, refer local and national
electric codes.
DC/AC disconnect:
In order to be able to disconnect the inverter on the PV generator side from sources of voltage, the inverter comes equipped with an
pre-installed AC/DC disconnect switch. As a result, the installation of an external AC or DC disconnect switch is not required. NOTE: Be
sure to check with local electrical codes and utility requirements as some inspectors will require a separate visible blade disconnect.
Line overcurrent protection:
In order to protect the wiring, the inverter’s supply leads should be secured with circuit breakers or fuses as appropriate. The circuit breakers
or fuses that are used should be appropriate to the length and cross-section of the wiring and fulfill applicable standards and directives
(5.3: Electrical connection – grid connection).
Utility power meter:
The required utility power meter is specified and installed by the responsible power company.
Main circuit breaker:
Contact your utility and check with local and national electrical codes if you have questions concerning the required main circuit
breaker.