The **M5PA-C4W-R** is a specific industrial-grade pushbutton switch, typically manufactured by **IDEC** or similar industrial control component providers. It belongs to the **ø16 (16mm)** miniature control unit series, commonly used in control panels, medical equipment, and automation systems. --- ### 1. Technical Specifications The following table outlines the primary electronic and mechanical characteristics: | Feature | Specification | | :--- | :--- | | **Mounting Hole Size** | 16mm (Diameter) | | **Button Shape** | Mushroom Head (Large surface area) | | **Action Type** | Momentary (Spring return) | | **Contact Configuration** | SPDT (1PDT) or DPDT (2PDT) - model dependent | | **Color** | Red (R suffix) | | **Illumination** | Non-Illuminated | | **Terminal Type** | Solder/Tab Terminal | --- ### 2. Internal Electronic Components The device consists of three main sub-assemblies that handle the electronic logic: 1. **The Operator (Actuator):** The red mushroom cap. It is designed for ease of use, often used as a manual trigger or a "stop" function (though not necessarily an Emergency Stop unless rated as such). 2. **Contact Block:** This is the core electronic part. It contains the **Gold-clad silver contacts**. * **Gold Cladding:** Ensures high reliability even with low-level electronic signals (dry circuits) by preventing oxidation. 3. **Terminal Pins:** These are silver-plated brass connectors designed for soldering or quick-connect female crimp terminals. --- ### 3. Electrical Ratings In industrial electronics, understanding the load capacity is critical to prevent contact welding or arcing. * **Thermal Current (Ith):** 5A * **Operational Voltage/Current:** * **AC Load:** 125V @ 5A / 250V @ 3A * **DC Load:** 30V @ 5A / 125V @ 1.1A * **Insulation Resistance:** 100 MΩ minimum (at 500V DC) * **Contact Resistance:** 50 mΩ maximum (initial value) --- ### 4. Circuit Diagram Representation The device functions as a standard changeover switch. In a schematic, it is represented as follows: ```text [COM] (Common) / / [NC] o o [NO] (Closed) (Open) ``` * **Idle State:** Continuity exists between `COM` and `NC`. * **Pressed State:** Continuity exists between `COM` and `NO`. ---