Compact, panelmounted cam changeover switch for reliable manual transfer and circuit selection. Model SZW2620/08.4 offers 0 to 8 selectable positions and robust electrical ratings for industrial control panels and equipment. Key benefits Simple, reliable manual transfer between circuits or power sources to reduce downtime. Clear position indexing with cam mechanism for positive onoff switching. Compact panel mounting in common sizes for easy integration into control enclosures. Durable plastic housing and a 16terminal, 4pole layout for flexible wiring and multicircuit control. Main specifications Model: SZW2620/08.4 (compatible with LW26 and LW28 mounting frames) Switch type: Universal cam changeover switch Poles: 4 Terminals: 16 Positions: 0 to 8 positions Current rating: 20 A conventional heating current (Ith) Rated working currents and voltages: AC category AC15: 20 A at 440 V DC category DC13: 1 A at 240 V Rated insulation voltage Ui: 660 V Panel cutouts: 48 x 48 mm and 64 x 64 mm mounting options Material: Plastic housing Hazardous chemicals: None reported Performance and compatibility Designed for AC switching duties up to 20 A and for limited DC control applications at 1 A. Four poles and 16 terminals allow independent switching of multiple circuits in one compact unit. Panel mounting dimensions 48 x 48 mm and 64 x 64 mm fit common instrument and control panels for retrofit or installations. Typical applications Power source transfer: Manual selection between primary and backup power lines in small distribution panels. Machine control: Changeover and position selection for motors, pumps, and process equipment control circuits. Maintenance isolation: Safe selection and isolation of circuits during equipment servicing or testing. Installation tips Verify panel cutout size before installation to ensure correct mounting frame selection. Confirm wiring layout for all 16 terminals against the application schematic to prevent crossconnection. Use appropriate conductor sizing and protective devices per local electrical practice for the 20 A rating. This cam changeover switch is a practical solution when compact manual switching, multiple positions, and multicircuit control are required in panelmounted installations.