SZW26 / LW2620 One Pole Four Terminals 48 x 48 Panel Selector Rotary Cam Changeover Switch A compact, panelmounted selector switch designed for reliable manual changeover of a single circuit. The SZW26/LW2620 combines a positive rotary cam mechanism with a small 48 x 48 panel footprint and a robust 20A / 660V rating to deliver dependable switching where clear position selection and safe circuit changeover are required. Key specifications Model: SZW26 / LW2620 Type: Selector rotary cam changeover switch Poles / Terminals: One pole, four terminals Panel size: 48 x 48 (panelmount design) Rated current: 20 A Rated voltage: 660 V Why this switch solves your problem Clear and reliable manual control: The rotary selector provides distinct, tactile positions so operators can confidently select the desired circuit or function. Spaceefficient design: The compact 48 x 48 panel footprint fits tight control panels and standard cutouts, saving space without sacrificing performance. electrical capacity: Rated for 20 A and up to 660 V, it supports a broad range of industrial and commercial lowvoltage switching needs. Flexible wiring: One pole with four terminals allows straightforward wiring for singlecircuit changeover applications and offers options for common, normally open, and normally closed arrangements depending on panel wiring. Key features and benefits Positive cam actuation for reliable contact engagement and repeatable switching. Simple panel mounting for fast installation and maintenance. Durable construction suitable for control panels, switchboards, and machinery interfaces. Straightforward wiring keeps installation time and error risk low. Applications / Use cases Manual power source selection: Use as a compact changeover switch on distribution panels to select between two supply sources for a single circuit during maintenance or fault isolation. Machine control panels: Provide operatorselectable modes or functions (e.g., local/remote, test/run) on industrial equipment where a singlecircuit selector is required. Test and service stations: Integrate into control and testing panels to route a circuit through instruments or isolation paths during troubleshooting. Installation and compatibility notes Designed for panel mounting in a 48 x 48 panel opening; check panel cutout dimensions and mounting hardware for fit. Suitable where a onepole selector with four terminal connections and 20A/660V ratings meets the system requirements. Wiring should be performed by qualified personnel in accordance with applicable electrical codes and safe work practices. Technical summary Model SZW26/LW2620 — One pole, four terminals — 48 x 48 panel mount — Selector rotary cam changeover switch — Rated 20 A, 660 V.