LW5D16/YH3.3 is a bluepanel cam switch designed for threephase changeover in control panels. It provides a 16A current rating with a 4position, 4pole configuration for flexible wiring and reliable switching of threephase circuits. Supplied as a single piece, this unit features 12 terminal screws for secure wiring and a blue front panel for clear identification in a panel environment. Key benefits Enables safe, straightforward switching between connections in threephase circuits. Consolidates multiple switching functions into a single device, saving panel space and simplifying wiring. Blue panel provides quick visual identification for easy operation and labeling. 12 terminal screws support robust and secure wiring connections. 16A rating suits common industrial loads in small to midsize systems. Mechanical cambased operation offers reliable, repeatable switching performance. Key attributes Model: LW5D16/YH3.3 Type: Threephase changeover cam switch Poles: 4 Positions: 4 Current rating: 16A Panel color: Blue Terminals: 12 screws Quantity: 1 piece Applications and use cases Threephase motor control panels where quick changeover between connections is required, enabling safe switching of threephase feeds. Test benches or educational laboratories that need configurable wiring schemes and repeatable threephase switching. Compact control panels in machinery or equipment that require reliable threephase changeover with a clear, identifiable front panel for operation. This description reflects the product's model LW5D16/YH3.3, its 16A rating, blue panel, 4 poles, 4 positions, 12 screws, and its designation as a threephase changeover cam switch, supplied as one piece.