SunSynk BB-300 - System Sizing; Current Rating; Fusing; Cabling

SUNSYNK-BB-300 | User Manual8
System Sizing
Current Rating
The Sunsynk Busbar is rated for a nominal current of 800A, for 12, 24 or 48 system voltages.
To give an idea of how much power the Sunsynk Busbar is rated at dierent voltages, see the below table.
The power rating will give you an indication how big the connected inverter/charger system can be.
System Voltage 12V 24V 48V
800A 12kW 24kW 48kW
Fusing
The Sunsynk Busbar does not have fuses, fusing needs to be done externally.
Always use fuses with the correct voltage and current rating. Match the fuse rating to the maximum voltages
and currents that potentially can occur in the fused circuit.
The total value of the fuses of all circuits should not be more than the current rating of the
Sunsynk Busbar.
Cabling
The current rating of the wires or cables used to connect the Sunsynk Busbar to batteries and/or the DC
loads has to be rated for the maximum currents that can occur in the connected circuits. Use cabling with a
sucient core surface area to match the maximum current rating of the circuit.
INSTALLATION
Mechanical Connections
Connection Features
The Sunsynk Busbar can be opened up by unscrewing 2 cover screws.