... switch cabinets 1.IEC60439,GB7251 2.ABB,Schneider,GE parts optional 3.IP30/40 switchgear Movable Switchgear,Switching Device,Protective ... Boxswitch cabinets 1.IEC60439,GB7251 2.ABB,Schneider,GE parts optional 3.IP30/40 switchgearMovable Switchgear, Switching Device, Protective ... ionized gases vented by the breaker during circuit interruption.3.A superior bus system offers different levels of protection ...