Metal Clad Switchgear (ABB Cooperative Product) UniGear-ZS1 12/ ... four zones as busbars, switchgear components, cable connections and auxiliaries by metal plates grounded with separation forms ... of 1, 2b, 3b, 4a and 4b for option.5) Mounting of switchgear ... 150mm, 300mm, 450mm, 600mm and 750mm. Switchgear components making up the switchboard are installed in ...