The **M8YV-355-R** is a specific variant of an industrial-grade **M8 Connector** assembly, typically used in automation, sensor technology, and robotics. This part number usually refers to a circular connector cable assembly or a panel-mount receptacle designed for harsh environments. --- ### 1. Technical Specifications The following table outlines the typical electrical and mechanical characteristics for the M8 series (V-355 variant): | Feature | Specification | | :--- | :--- | | **Connector Type** | M8 Circular Connector | | **Number of Pins** | 3 Pins (Standard for M8YV series) | | **Coding** | A-Coded (Standard for sensors/actuators) | | **Current Rating** | 3A to 4A (depending on wire gauge) | | **Voltage Rating** | 60V AC / 75V DC | | **IP Rating** | IP67 / IP68 (Dust-tight, Waterproof) | | **Coupling Method** | Threaded (M8 x 1.0) | --- ### 2. Breakdown of the Part Number Components While manufacturers vary slightly, the nomenclature "M8YV-355-R" generally breaks down as follows: * **M8**: Indicates the thread size (8mm diameter). * **YV**: Often designates the material or specific housing style (Y-splitter or Vertical mount). * **3**: Represents the number of poles/pins. * **55**: Often refers to the cable length (e.g., 0.5m) or a specific material code for the jacket (like PVC or PUR). * **R**: Usually stands for **Right Angle** (90-degree) orientation or **RoHS** compliance. --- ### 3. Core Electronic Components Inside an M8YV-355-R assembly, you will find several key electronic/structural elements: 1. **Contact Pins:** Typically made of brass or bronze with **Gold (Au) plating** to prevent oxidation and ensure low contact resistance. 2. **Insulator:** A plastic carrier (often PA66 or PBT) that holds the pins in place and prevents short-circuiting between them. 3. **Shielding:** Many "R" variants include an internal 360° shield connected to the coupling nut to protect signals from Electromagnetic Interference (EMI). 4. **Overmold:** A TPU or PVC outer shell that provides strain relief and prevents moisture ingress at the wire-to-contact junction. --- ### 4. Wiring Diagram (3-Pin Standard) In industrial automation, the 3-pin M8 connector follows a standardized color code: ```text Pin 1: Brown (+) -> Positive Power Supply (typically +24VDC) Pin 3: Blue (-) -> Negative/Ground (0V) Pin 4: Black (S) -> Switching Signal / Output ``` ---