Contact transfer speed under 100 ms with high close-in and withstand capability.Double-throw, interlocked operation, electrically operated and mechanically held via an over-center mechanism.Silver tungsten alloy segmented contacts, with separate arcing contacts for 600 A and above.Advanced arc control using quenching grids, enclosed arc chambers, and wide air gaps for superior isolation.Safe maintenance features, including control circuit disconnect plug and drive inhibit switch.Easy inspection and maintenance without removing the switch or power conductors, with mechanical indicator and inspection-ready contact chamber cover. 
