This unit combines 4 PV input pairs into 4 DC outputs. The inputs and outputs have MC4 connectors pre-fitted. There is also an external earth stud for earthing.
Each string is protected by DC circuit breakers rated at 20A and 1000V
This unit contains two Dehn or Citel Type 1 & 2 DC Surge Protection Devices (SPDs), these are suitable for installation on sites that experience frequent lightning strikes.