The **M2AS1-A223-R2/N** is a specific part number belonging to a series of **Rotary Switches**, typically used in industrial control panels or specialized instrumentation. Based on the nomenclature, this part is characterized as a manual interface component designed for rugged environments. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | Rotary Selector Switch | | **Mounting Diameter** | Usually 22mm (Standard Industrial Size) | | **Positions** | 2-Position or 3-Position (indicated by '223') | | **Contact Configuration** | Typically 1NO (Normally Open) + 1NC (Normally Closed) or 2NO | | **Operation Mode** | Maintained (Stay-put) or Spring Return | | **Illumination** | Non-Illuminated (standard for /N suffix) | | **Termination** | Screw Terminals | --- ### 2. Physical Construction The device is composed of three main electronic and mechanical sections: * **The Operator (Actuator):** The visible knob on the front of the panel. It is usually made of reinforced plastic or metal with a black finish. * **The Contact Block:** The electrical heart of the switch. When the knob is turned, a mechanical cam pushes a plunger that opens or closes the electrical circuits. * **The Mounting Collar:** A threaded ring or latch mechanism that secures the operator to the panel through a 22mm hole. --- ### 3. Application Use Cases These parts are common in "Human-Machine Interface" (HMI) setups. Typical uses include: 1. **Hand/Auto Selection:** Switching a motor between manual control and PLC-automated control. 2. **Power Isolation:** Serving as a low-voltage control disconnect. 3. **Mode Selection:** Toggling between different operational states in a manufacturing line. ### 4. Wiring Diagram (Logic) In a standard 2-position configuration, the internal logic functions as follows: ```text Position 1 (Left): - Terminal 1-2 (NC): CLOSED - Terminal 3-4 (NO): OPEN Position 2 (Right): - Terminal 1-2 (NC): OPEN - Terminal 3-4 (NO): CLOSED ``` ---