SZW26 / LW2620 / LW28 / LW39B 48X48mm Panel ONOFFON 36 Screws 9 Phases Latching Rotary Cam Selector Switches Key benefits Compact, panelmounted rotary selector that simplifies mode selection with a clear ONOFFON arrangement. Useful where a reliable centeroff position and two selectable ON positions are required. Latching cam action holds the chosen position firmly, preventing accidental changes during operation and improving safety and predictability. Designed for multicircuit or multistep systems with 9 phases and 36 screws for secure electrical connections, reducing wiring rework and improving installation reliability. Standard 48x48 mm panel footprint fits common control panels and replacement applications for quick swaps or upgrades. What this product does and why it solves problems Provides a rugged, repeatable way to select among two active states and an off state (ONOFFON) without the complexity of pushbuttons or electronic selectors. The latching mechanism ensures the switch remains in the chosen position under vibration or operator contact, which is important in industrial and commercial equipment. The multiple phases and screw terminals accommodate complex wiring or multiple circuits, removing the need for additional terminal blocks. Key attributes Models: SZW26, LW2620, LW28, LW39B (as labeled) Switching pattern: ON OFF ON (threeposition, center off) Mounting: Panelmount, designed for a 48 x 48 mm panel cutout/footprint Mechanism: Latching rotary cam selector switch (detented positions) Termination: 36 screws (terminal/screw connections as supplied) Phases: 9 phases (multiphase/multicircuit capability) Use orientation: Intended for control panels and equipment where a stable, manual selector is required Practical use cases Industrial control panels: Select between two operational modes (for example, manual/automatic or two control sources) with a center off position for safety or neutral state. Power or signal routing: Route signals or power across multiple circuits using the 9phase capability and numerous screw terminals for clean, organized wiring. Test benches and maintenance jigs: Quickly and reliably switch test configurations or isolate equipment using the latching ONOFFON selector without changing wiring. Installation and compatibility notes Fits standard 48 x 48 mm panel mounting requirements; verify panel cutout dimensions before installation. 36 screw terminals provide flexibility for multiple connections—confirm terminal labeling and wiring diagram for correct phase and pole wiring. Matches the listed models SZW26 / LW2620 / LW28 / LW39B; select the exact model required for replacement or specific panel layout. Why choose this switch Straightforward, mechanical solution for recurring selector tasks where a centeroff position and positive latch are required. Multiple phases and plentiful screws simplify wiring for complex control needs and reduce time spent on installation and troubleshooting. Recognized models and a standard 48x48 mm panel size make it suitable for upgrades, replacements, and panel builds. Specifications (as provided) Models: SZW26 / LW2620 / LW28 / LW39B Panel size: 48 x 48 mm Switching: ON OFF ON Mechanism: Latching rotary cam selector Termination: 36 screws Phases: 9 For exact wiring, electrical ratings, and mounting details, refer to the technical drawing or datasheet for the specific model you are installing.