The **M2ADS-BA11-R** is an industrial-grade selector switch manufactured by **Autonics**. It belongs to the M2ADS series of $\phi$22mm (22.5mm) round-type, short-lever selector switches. --- ### 1. Key Technical Specifications The following table outlines the core electronic and mechanical parameters of the M2ADS-BA11-R: | Parameter | Specification | | :--- | :--- | | **Mounting Diameter** | $\phi$22mm (standard industrial cutout) | | **Operation Type** | 2-Position Maintain (Non-spring return) | | **Contact Block Configuration** | 1 NO (Normally Open) + 1 NC (Normally Closed) | | **Switch Action** | Maintained (Stays in the position it is turned to) | | **Handle Type** | Short Lever | | **Max Voltage / Current** | 250VAC / 3A (Typical resistive load) | | **Contact Material** | Silver alloy (AgNi) | | **Mechanical Life** | Approx. 1,000,000 operations | --- ### 2. Component Breakdown The device is modular, consisting of three primary electronic and mechanical sections: #### A. The Actuator (Operator) The "BA" in the part number signifies the **Short Lever** actuator. This is the physical interface the operator turns. It provides tactile feedback when clicking into position. #### B. The Contact Block (1 NO + 1 NC) This is the electronic switching element. - **NO (Normally Open):** The circuit is open (off) in the default position and closes when the switch is turned. - **NC (Normally Closed):** The circuit is closed (on) in the default position and opens when the switch is turned. - These blocks are usually detachable and can be replaced or rearranged. #### C. Mounting Collar The collar secures the actuator to the panel and provides the latching mechanism for the contact blocks. --- ### 3. Wiring and Terminal Layout The terminals are typically screw-type, allowing for easy integration into control panels. ```markdown Terminal Numbering Guide: - 1-2: NC (Normally Closed) Path - 3-4: NO (Normally Open) Path ``` ### 4. Environmental Ratings The "R" in the suffix often denotes the color (Red handle), though in some Autonics nomenclature, it can refer to specific compliance standards. The unit typically features: - **IP65 Protection:** Dust-tight and protected against water jets (when mounted correctly). - **Shock Resistance:** Designed for vibration-heavy industrial environments.