Home / ABB / ABB Drives / ABB AC Drives / ABB ACS880 Drive / ABB ACS880 Drive Options Code / ABB ACS880 Drive +Q971 ATEX-certified safe disconnection function, EX II (2) GD Optional Code (Safety functions module)ABB ACS880 Drive +Q971 ATEX-certified safe disconnection function, EX II (2) GD Optional Code (Safety functions module)