KACO blueplanet 1502xi - Manual (Page 36)

Page 38 blueplanet Operating and Installation Instructions 1502x - 2502x
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.
External DC switch:
In order to be able to disconnect the inverter on the PV generator side from sources of voltage, use the external DC disconnect switch.
External AC switch:
In order to be able to disconnect the inverter on the PV generator side from sources of voltage, use the external AC disconnect switch.
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 fulfi ll applicable standards and
directives (5.3: Electrical connection – grid connection).
Utility power meter:
The required utility power meter is specifi ed 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.