SZW26/LW2625 Rotary Knob External Changeover Switch Overview A compact, panelmounted rotary changeover switch designed to control multiple circuits from a single frontpanel knob. The SZW26/LW2625 provides a reliable mechanical solution for selecting between two outputs with a center off position and for switching up to five circuits simultaneously. Key benefits Spaceefficient installation: 48x48mm panel cutout fits standard small control panels and instrument enclosures. Multicircuit control: Five poles with 5NO+5NC contacts allow simultaneous switching of five separate circuits, reducing wiring complexity. Clear switching positions: ON Off ON arrangement gives positive selection of two active positions with a neutral center for safe interruption of circuits. electrical capacity: Rated 25A and 660V for heavyduty switching in common industrial and commercial applications. Secure terminations: 20 screw terminals provide reliable clamping and easy wiring for multiple conductors. Frontpanel operation: External changeover and rotary knob enable convenient manual control without opening the enclosure. Features Model: SZW26/LW2625 Poles and contacts: 5 poles, 5NO+5NC Switching positions: ON Off ON Current rating: 25A Voltage rating: 660V Terminals: 20 screw connections Mounting: 48x48mm panel cutout, frontpanel rotary knob Operation: External changeover manual rotary control Why customers choose this switch This product simplifies multicircuit switching where clear manual selection and reliable mechanical contacts are required. Its combination of five poles and mixed NO and NC contacts gives wiring flexibility for common control schemes. The compact 48x48mm panel footprint makes it suitable where panel space is limited, while the 25A and 660V ratings handle demanding loads typical of industrial control and distribution tasks. Practical use scenarios Motor control panel: Select between two control sources or operating modes for multiple control circuits while keeping a center off position for maintenance. Power source changeover: Manually switch five separate control or signal lines when transferring between two power sources or transformers. Test bench and equipment rack: Provide a single, frontaccess selector for routing signals or power to different test channels and instruments. Installation notes Designed for panel mounting using a 48x48mm cutout. Verify cutout and panel thickness before installation. Route conductors to the 20 screw terminals and tighten to appropriate torque for secure connections. Confirm wiring diagrams match the 5NO+5NC contact arrangement and ON Off ON switching pattern before energizing. Technical summary Model SZW26/LW2625 5 poles, 5NO+5NC ON Off ON 25A 660V 20 screw terminals 48x48mm panel mounting External changeover rotary knob This description provides the core specifications and typical uses to help select and install the SZW26/LW2625 rotary changeover switch in controls, distribution, and test applications.