HZ5D20/4 M07 M08 3Position 4Pole 20A Cam Transfer Switch Color designation: 20A 4 M08 Product overview This cam transfer switch is designed for motor control applications that require twospeed operation and stardelta starting. The HZ5D20/4 M07 M08 provides reliable, repeatable switching across three positions with four poles, supporting up to 20 A continuous heating current and rated for AC380V operation. Key benefits Precise motor control: Threeposition cam mechanism enables straightforward selection for twospeed motors and stardelta starting combinations. Compact fourpole switching: Fourphase switching supports complex motor circuits while keeping wiring organized. Stable electrical performance: Sized for common industrial loads with defined shortcircuit making and withstand capability to handle inrush and transient conditions. Easy integration: Standard electrical ratings and mounting make it compatible with many industrial control panels and motor starters. Main features and specifications Model: HZ5D20/4 M07 M08 Configuration: 3 positions, 4 poles Current ratings: Conventional heating current Ith: 20 A Rated working current Ie: 10 A Rated working voltage Ue: AC 380 V Rated insulation voltage Ui: 660 V Use category: AC3 (motor switching) Rated power: 4 kW (appropriate for motor control applications specified) Shortcircuit performance: Rated shortcircuit making capacity Icm: 340 A Rated shorttime withstand current Icw: 240 A for 1 second Color designation: 20A 4 M08 Intended use: Transfer switch for twospeed motor control and stardelta starting combinations What makes this switch stand out Designed specifically for combined twospeed and stardelta motor control in one cam switch, reducing the need for multiple components. Clear electrical ratings that help match the switch to motor and control circuit requirements. Fourpole design simplifies wiring for threephase motors and additional control poles. Compatibility and installation notes suited for control panels and motor starter assemblies that operate at AC 380 V and use AC3 motor switching category. Check that the application current requirements align with Ith 20 A and Ie 10 A ratings; the switch handles motor inrush and shortduration faults within its Icm and Icw limits. Mount and wire according to standard industrial practices for cam switches and threephase motor starters. Typical applications Twospeed fan or pump control where a single device selects , low, and off positions while supporting stardelta starting. Motor starter panels for small to medium threephase induction motors up to the rated power and current values. Industrial machinery that requires a compact combined switch for speed selection and starting method changeover. Ordering and identification Use model number HZ5D20/4 M07 M08 and color designation 20A 4 M08 when specifying or ordering to ensure correct configuration. This switch is a practical choice when you need a single compact device to manage twospeed operation and stardelta starting in threephase motor control systems while maintaining clear and conservative electrical ratings.