The **M2UDS2-A14-R** is a specific model within the series of industrial-grade limit switches or control components, typically associated with manufacturers like **IDEC** or similar industrial automation brands. It is primarily used for panel-mounted signaling and control. Below is a breakdown of its electronic and mechanical parts. --- ### 1. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Component Type** | Indicator / Pushbutton Component | | **Series** | M2 Series (Miniature Control Units) | | **Mounting Hole** | 12mm (Typical for M2 series) | | **Terminal Type** | Solder Terminal / Tab Terminal | | **Shape** | Square (S2 designation) | | **Illumination** | LED or Incandescent compatible | | **Operating Voltage** | Varies by internal bulb (e.g., 6V, 12V, 24V AC/DC) | --- ### 2. Internal Electronic & Mechanical Components The device consists of three primary layers that work together to provide user feedback and signal switching: #### A. The Operator (Actuator) The "S2" in the part number usually refers to the **Square** head shape. This is the mechanical interface that the user presses. It is spring-loaded to return to its original position (momentary action). #### B. The Illumination Unit This part houses the light source. * **LED/Lamp:** The "A" in the suffix often denotes the color (e.g., Amber) or the voltage configuration. * **Resistor/Diode:** In LED versions, a small internal resistor is often included to prevent the LED from burning out at the rated voltage. #### C. The Contact Block This is the electrical switching mechanism. * **Contacts:** Usually made of silver or gold-clad silver to ensure high conductivity and resistance to oxidation. * **Configuration:** Typically provides **SPDT** (Single Pole Double Throw) or **DPDT** (Double Pole Double Throw) configurations. --- ### 3. Part Number Decoder (A14-R) While naming conventions can vary slightly by region, the suffix generally breaks down as follows: * **A14:** Often refers to the internal electrical rating or the specific mounting style (e.g., 110V/120V input with a transformer or a specific pin layout). * **R:** Generally indicates the **Color** of the lens or the LED, in this case, **Red**. --- ### 4. Typical Applications * **Control Panels:** Used as a status indicator for "Emergency" or "Stop" functions. * **Medical Equipment:** Due to its miniature size (12mm), it fits in dense control boards. * **Industrial Automation:** Provides tactile feedback and visual status of PLC outputs. ---