Pneumatically activated high current contacts of the druseidt „Compact model 3000“ range are utilised with high current levels and heavy bus-bars (e.g. in anodising and hard chrome systems) because of their high pressure contact and the extra stable construction. The basic construction as well as the protective covers are built of stable rust-free and acid-resistant stainless steel. Current is transferred on both sides through specially stamped E-Cu contact plates. The pneumatic drive use a pneumatic cushion built into the contact on one side where it is protected. If desired and for an extra charge, this system can be equipped with pneumatic drives on both sides of the unit. Connecting the contacts to the current supply is done with the E-Cu contact plates on both sides. The moveable contact block side must be connected with flexible cables (braided). The fixed side of the contact can be connected with massive bars. Standard E-Cu connection plates are angled at approx. 90°. Longer or straight connection plates can be ordered if they are desired. All standard contacts are either provided without or ready to install with a 15 mm insulation plate screwed into place. To install the unit on a wall edge, only four drill holes are required. The air pressure required to operate the unit should be 4 to 6 bar. Operation is possible with manual switches as well as with a pneumatic control unit.