Translations:Overcurrent protection device/6/en

Each PV system will vary in terms of its OCPD needs both due to design and local requirements. The diagram at right depicts a hypothetical stand-alone system with DC lighting and an inverter for AC loads. It depicts many OCPDs that are commonly incorporated into an off-grid system, but simpler systems will not require as many and more complex systems will likely require additional OCPDs. Not all of the OCPDs in the diagram are completely necessary, it may be possible to omit some as they are already protected from excessive current by another OCPD. Any connections made directly to the energy storage system must be protected by an OCPD as the energy storage system can supply a tremendous amount of current in a short period of time. Many of these OCPDs depicted also serve as power source disconnects and equipment disconnects.