The **M5MS-5-R/K** is a specific series of miniature pneumatic-to-electric interface components, typically associated with brands like **Festo** or similar industrial automation manufacturers. These devices are used to convert pneumatic signals into electrical signals (pressure switches). --- ### 1. General Specifications The "M5" designation usually refers to the thread size, while the "5" often denotes the pressure range or operational characteristic. | Feature | Description | | :--- | :--- | | **Component Type** | Pneumatic-to-Electric Converter (Pressure Switch) | | **Connection Port** | M5 Metric Thread | | **Operating Pressure** | Typically 0 to 8 bar (specific to the "5" series) | | **Contact Type** | Normally Open (NO) or Changeover (K-variant) | | **Media** | Filtered compressed air (lubricated or unlubricated) | --- ### 2. Key Electronic Components Internally, the device functions as a transducer. The transition from air pressure to electricity involves several key parts: #### A. The Diaphragm/Piston This is the mechanical interface. When air pressure enters the M5 port, it pushes against a flexible diaphragm or a small piston. #### B. The Microswitch Once the pressure reaches the "switching threshold," the mechanical movement triggers a small **microswitch**. * **Contacts:** Usually made of silver or gold-plated alloys to ensure high conductivity and corrosion resistance. * **Switching Voltage:** Typically supports 12V - 250V AC/DC (model dependent). #### C. Electrical Terminals (The R/K Suffix) The suffix in the part number often dictates how the electronic connection is made: * **R (Radial/Push-in):** Often refers to the orientation or specific plug-in connector type. * **K (Cable/Terminal):** Usually indicates a design with integrated lead wires or a specific terminal block configuration. --- ### 3. Circuit Integration When integrating this part into an electronic control system (like a PLC), the wiring follows standard switch logic: ```yaml Pneumatic Input (M5) -> Pressure Force -> Microswitch Closure -> Electrical Loop Closed ``` **Wiring Example:** 1. **Common (COM):** The input voltage source. 2. **Normally Open (NO):** Connected to the PLC Input. When pressure is applied, the circuit completes, sending a "High" signal to the controller. --- ### 4. Typical Applications * **End-of-stroke sensing:** Detecting when a cylinder has reached its position via pressure build-up. * **Safety Interlocks:** Ensuring a system has sufficient air pressure before allowing electronic components to activate. * **Pressure Monitoring:** Simple "On/Off" feedback for pneumatic logic circuits.