Which cable can I use in a PowerShare installation?

*NOTE: The information below is directed towards installers. Only trained electricians are allowed to install Ferroamp’s products.  

Answer:

In a PowerShare installation, when multiple EnergyHubs are connected, the midpoint (M) of the DC network must be connected between all EnergyHubs. The midpoint conductor is typically non-current-carrying but is still required to balance the DC voltage and manage any fault currents during short circuits. For this reason, the midpoint conductor should have an area that is at least 25% of the conductor area for L+ and L-.

The voltage drop in the cabling between the different components and EnergyHubs in a PowerShare is crucial for the control and energy sharing to function as intended.

Since currents in a PowerShare can flow in different directions and the power in the cable is not solely determined by the amount of solar power, batteries, and EnergyHubs installed in each property, we recommend seeking assistance from Ferroamp to review the design to ensure it is done correctly from the start. You can contact Ferroamp's design engineers here.

Please specify the design and sizing when submitting the request so it reaches the right people directly.

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