Abb Limited [Wind Power Solutions] manufactures Manually Operated Change-over Switches. Abb Limited [Wind Power Solutions] is an ISO 9001 certified company. The Company also manufactures various types of switches, enclosed switches, fuse gear, cable distribution cabinets and circuit breakers. The Manually Operated Change-over Switches have range from 16 Amperes to 2500 Amperes. The Manually Operated Change-over Switches is operated via a handle fixed directly on the switch or on the panel door.