The SZW26/LW2620 Ui 660V 20A 3 Phase 12 Screw Terminals 4 Position Selector Changeover Cam Switch 48X48mm is a heavyduty cam switch designed for threephase control in industrial equipment. It provides a robust switching solution with a compact 48 by 48 mm mounting footprint, suitable for panel installations where reliable phase switching and flexible configuration are required. Key benefits Flexible three phase control: supports 3 phase switching with a 4 position selector to configure different circuits or operating modes. Clear wiring with multiple terminals: 12 screw terminals simplify connection of three phase lines and control circuits, reducing wiring complexity and improving reliability. Efficient changeover operation: the changeover cam mechanism allows reliable transfer between circuits as the selector rotates, supporting common control schemes in industrial systems. Compact footprint: 48X48 mm mounting size enables integration into compact control panels without sacrificing performance. voltage and current capacity: rated for Ui up to 660V and current up to 20A, suitable for many industrial motor and load control applications. Key attributes Model: SZW26/LW2620 Insulation voltage (Ui): 660 V Current rating: 20 A Phase configuration: 3 Phase Terminals: 12 screw terminals Positioning: 4 position selector Type: Changeover cam switch Mounting size: 48 x 48 mm Specifications and performance Voltage handling: suitable for up to 660 V insulation voltage Load capability: rated current of 20 A Phase support: designed for threephase circuits Terminal arrangement: 12 screw terminals to support threephase wiring and associated controls Switching action: changeover cam mechanism with a 4 position selector Form factor: compact 48X48 mm mounting footprint Functional features Four selectable positions allow configuring different circuits or operating states without needing multiple devices Changeover design supports transferring between circuits in a controlled manner as the switch is operated Screw terminal connections provide secure and easier wiring for field installation and maintenance Suitable for panel mounting in control cabinets or equipment racks Compatibility and use cases Motor control in threephase systems: switch start/stop signals or select between motor circuits in a compact control panel Load switching for threephase equipment: configure and direct power to different loads or parts of a system using a single switch Phase or circuit configuration in test or lab setups: provide quick changeover between different wiring schemes or test loads Industrial automation panels: integrate as a control element in machines requiring reliable 3phase switching with a compact form factor Installation and wiring considerations Mount the unit in a panel opening designed for 48 x 48 mm devices Use the 12 screw terminals to connect three phase lines and associated control circuits as per wiring diagram Ensure the operating voltage and current loading do not exceed Ui 660 V and 20 A respectively Verify correct alignment of the 4 position selector to ensure the desired circuit configuration is selected Follow standard electrical safety practices when wiring and operating voltage equipment Applications overview Suitable for use in industrial machinery, conveyor systems, and control panels where threephase switching and flexible circuit selection are required Appropriate for equipment needing a compact 4 position changeover switch to manage multiple loads or configurations within a single device Notes This description reflects the specifications and features of the SZW26/LW2620 model as provided: 660 V Ui, 20 A, 3 Phase, 12 screw terminals, 4 position selector, changeover cam switch, 48x48 mm mounting. No additional alterations or omissions. This product provides a reliable, compact solution for threephase switching with flexible configuration options, designed to fit standard 48x48 mm panel openings while delivering robust electrical performance.