SZW26/LW2663 Rotary Change Over Cam Switch (D101.1) — 1PC A compact, manual rotary cam switch designed for reliable singlephase changeover and isolation. Rated 63A at 660V, this ON–OFF–ON switch provides a straightforward, durable way to select or isolate circuits in control panels, machinery, and power distribution setups. Key benefits current and voltage capacity: Rated for 63A and up to 660V, suitable for heavyduty singlephase switching tasks. Clear, simple operation: ON–OFF–ON configuration lets you select between two circuits or provide a safe off position between them. Positive cam action: Mechanical cam design ensures repeatable, tactile switching and reliable contact engagement. Spaceefficient and versatile: Fourterminal layout simplifies wiring for changeover applications without bulky accessories. Singlepiece supply: Sold as 1PC, ready for immediate installation or replacement. Primary specifications Model: SZW26/LW2663 Part number: D101.1 Configuration: ON OFF ON (rotary change over cam switch) Rated current: 63A Rated voltage: 660V Phases: Singlephase (1phase) Terminals: 4 terminals Quantity: 1PC Functionality and compatibility Acts as a manual changeover switch or selector between two power sources or two output circuits, with a neutral 'OFF' position. Four terminal connections support straightforward wiring for singlephase systems. Suitable for integration into control panels, motor control stations, distribution boxes, and other electrical assemblies requiring manual selection or isolation. Performance and usability Designed for repeated manual operation with clear positions and firm switching feel. Provides a visible and positive method to isolate circuits or redirect power in maintenance, testing, or normal operation. Compact form factor fits typical panel cutouts used for rotary selectors and cam switches. Typical use cases Power source selection: Switch between a primary supply and an auxiliary or backup source while keeping a safe OFF position between selections. Equipment control and maintenance: Isolate singlephase equipment for servicing or switch output lines during testing without rewiring. Motor or heater control panels: Manually select forward/alternate circuits or turn equipment fully off between operating positions. Installation notes Confirm compatibility with your panel cutout and wiring layout before installation. Follow applicable electrical safety practices and local regulations when wiring and operating the switch. Sold as a single unit (1PC) matching model SZW26/LW2663, D101.1, 63A/660V, 4terminal, ON–OFF–ON cam switch. This SZW26/LW2663 cam switch offers a practical, reliable solution when you need manual changeover, clear isolation, and a compact design for singlephase installations.