LW5D16/YH3.3 is a yellow panel mounted 16A threephase rotary changeover cam switch with a 4position pole. It features 12 screw terminals and is supplied as a single piece. This compact control device is designed for panel installations where reliable phase routing and changeover are required in threephase circuits. Key benefits Reliable 3phase changeover: enables safe and repeatable switching between circuit paths in threephase control applications. Fourposition operation: supports multiple selectable wiring configurations or routing options within a single switch. Panelmounted visibility: yellow panel provides clear,Userfriendly operation and quick identification in control environments. Adequate current rating: 16A rating suitable for common motor and load control tasks in industrial panels. Secure wiring: 12 screw terminals allow straightforward and robust wiring connections. Durable switching: rotary cam mechanism delivers consistent performance for regular operation in demanding settings. Key attributes Model: LW5D16/YH3.3 Panel type: Yellow panel Poles and positions: 4position pole Terminals: 12 screw terminals Configuration: Threephase rotary changeover cam switch Electrical rating: 16A Mounting: Panel mount Quantity: 1 piece Use cases Motor control in a 3phase system: use the switch to start, stop, or reconfigure a 3phase motor by selecting different circuit paths from a single control device. Power source changeover in a control panel: switch between alternative 3phase supply routes or configurations within a multisource panel, enabling quick reconfiguration without rewiring. Multiconfiguration 3phase equipment: in equipment that requires selecting among several wiring configurations or circuit paths, the LW5D16/YH3.3 provides a compact, singledevice solution for four selectable positions. This description reflects the model, features, and intended use of the LW5D16/YH3.3 threephase rotary changeover cam switch, maintaining a professional tone and focusing on practical benefits and applications.