... 1.IEC60439,GB7251.1 2.ABB,Schneider,GE parts Package Switchgear, Alternating Current Switchgear, Protective Switching DeviceStandardsGB7251.1 ... protect operators from accidental contact with live conductors when the breaker is withdrawn.8.Easy access to equipment ... Optional Power Management: With the proper devices, facility power can be tracked and controlled. Package Alternating Current Switchgear, ...