MAXPOWER CS6U-330|335|340|345M

MAXPOWER CS6U-330|335|340|345M

ABB’s three-phase PRO-33 string inverter is designed for medium and large decentralized PV systems either on large-scale commercial and industrial rooftops or ground-mounted PV plants. The inverter offers cost-efficiency in a high power, wall-mountable package with very high conversion efficiency. The all-in-one design with built-in and monitored PV plant protection devices reduces the need of costly external devices.


  • Compact, high power wall-mountable package
  • High maximum DC input voltage of up to 1100 V
  • Configurable all-in-one design
  • Advanced grid support functions
  • Safe and intuitive user interface
  • Robust enclosure, with IP65 rating suitable for outdoor installation

Configurable all-in-one design

ABB PRO-33.0 string inverter comes in three product variants. The standard model with or without DC switch is designed for use with an external string combiner box. The all-in-one model with built-in string combiner box includes a DC switch, string current monitoring with alarm, PV fuses, monitored surge protection devices and tool-less solar quick connectors. The inverter’s all-in-one design, with built-in and monitored PV plant protection devices, reduces the need of costly external devices.

High total efficiency maximizes return on investment

PRO-33.0 inverter offers a high conversion and MPP tracking efficiency in all conditions. A flat efficiency curve provides high revenues in low and high radiation conditions.

Fast and easy commissioning

Fast PV plant commissioning is enabled via preprogrammed country grid code settings that are easily selectable. Extensive certification ensures wide grid code compatibility. Plug and Play DC and AC connectors enable fast and safe cabling. A touch protected installation area provides additional safety and comfort for inverter installation and maintenance.