SZW26/LW2620 Ui 660V 20A 3 Phase 12 Screw Terminals 4 Position Selector Changeover Cam Switch 64X64mm Key benefits Reliable manual changeover and selection for 3phase control circuits — simplifies switching between circuits, sources, or operating modes. Compact panel footprint (64×64 mm) saves space in control panels and enclosures. Clear, secure wiring with 12 screw terminals for organized connections and straightforward installation. Rated for industrial use up to Ui 660V and 20A, providing appropriate capacity for small to medium power control applications. What this switch does and why you need it Provides positive, repeatable selection between up to four positions in a 3phase circuit, making it a practical choice where reliable manual control or changeover is required. Reduces downtime and wiring complexity by consolidating selection and changeover functions into a single, panelmounted device. Useful for maintenance isolation, manual source selection, and simple circuit configuration changes without modifying control wiring. Key attributes Model: SZW26/LW2620 Rated insulation voltage (Ui): 660V Rated current: 20A Phase: 3phase applications Terminals: 12 screw terminals for line/load and auxiliary connections Positions: 4position selector / changeover cam switch Size: 64×64 mm panel footprint Functionality: Selector/changeover cam switching for manual selection or transfer applications Performance and installation notes Designed for dependable manual switching in control panels and industrial equipment. 12 screw terminals make it easy to separate phases, inputs, outputs, and auxiliary circuits for tidy wiring and clear diagnostics. Compact 64×64 mm size fits standard small panel openings, helping preserve space while keeping controls accessible. Typical applications Power source changeover: Manual selection between two power feeds (for example, main supply and backup generator) or selection of input sources in distribution panels. Control panel switching: Selecting operating modes or isolating motor circuits, heaters, or other threephase loads during maintenance or testing. Industrial equipment: Use in machine control cabinets where a compact, manual selector is needed for process selection or emergency manual control. Why choose this model The SZW26/LW2620 combines a compact footprint with a practical 4position cam selector and 12 screw terminals, offering a straightforward, reliable solution for manual changeover and selection in 3phase systems rated up to 660V and 20A. Its layout and terminal count make it suitable for installers and service technicians who need clear wiring, fast commissioning, and easy maintenance access. Compatibility and safety reminders Intended for 3phase circuits up to the specified Ui 660V and 20A ratings. Ensure system voltages and currents do not exceed these ratings. Follow local wiring codes and safety practices when installing and commissioning the switch.