Selector rotary cam changeover switch model SZW26/LW2620 and SZW2620/C02.1 D101.1 02.1. Single pole, 20A, panel mount changeover switch available in panel sizes 48x48 mm and 64x64 mm. Color code D101.1. Universal plastic construction for one phase control and selector applications. Key benefits Reliable manual changeover for control and power circuits. Clear detented positions reduce misoperation and simplify mode selection. insulation capability and 20A continuous rating support typical industrial and panelboard loads while keeping the switch compact. Versatile switching patterns including OFFON and ONOFFON configurations to match different control schemes and wiring layouts. Simple panel installation and compact footprint allow easy retrofitting into existing control cabinets and operator panels. Technical highlights Model references: SZW26/LW2620 and SZW2620/C02.1 D101.1 02.1 Switch type: selector rotary cam changeover, 1 pole, universal switch Current rating: 20A conventional heating current Ith Rated insulation voltage Ui: 660V AC use category: AC15 Rated working voltage AC Ue1: 440V, rated working current Ie1: 20A DC use category: DC13 Rated working voltage DC Ue2: 240V, rated working current Ie2: 1A Positions and markings: OFFON, ONOFFON and related position codes such as 012, 01, 102 as supplied for wiring flexibility Material: durable plastic body, suitable for panel mounting size 48x48 mm or 64x64 mm Supplied quantity: 1 piece Compatibility and installation Designed for standard panel cutouts of 48x48 mm and 64x64 mm. Verify panel cutout size before installation. Wiring terminals accommodate control and power conductors appropriate for the rated currents. Follow wiring diagrams for selected position configuration. Intended for single phase control circuits and selector functions in control panels and equipment. Practical application scenarios 1. Control panel mode selection Use the selector switch to choose between automatic and manual control modes in motor control or process control panels. The clear detented positions and multiple configuration options make mode selection straightforward for operators. 2. Manual changeover between power or signal sources Employ the switch to route power or control signals between two circuits during maintenance or testing. The switch supports AC power switching at up to 440V and 20A, and low current DC switching up to 240V and 1A. 3. Test benches and laboratory equipment Integrate the selector into test setups to switch measurement circuits or device under test connections quickly. Compact panel mounting saves space while providing reliable mechanical switching. Ordering and application notes Confirm required position configuration when ordering to match control logic and wiring. For DC switching applications note the lower DC current rating of 1A at 240V. Verify panel cutout size and mounting depth for compatibility with existing enclosures. This selector rotary cam changeover switch offers a compact, flexible solution for manual changeover and selector functions in industrial, laboratory, and control panel applications where a 20A single pole selector is required.