Based on the model number, the **M-R45-P** typically refers to a high-quality **M12 Circular Connector** (specifically a Field Wireable Connector) often produced by manufacturers like **Murrelektronik** or similar industrial automation brands. --- ### ## Technical Specifications The M-R45-P is designed for industrial sensing and actuation. Below is a breakdown of its primary electronic and physical attributes: | Feature | Specification | | :--- | :--- | | **Connector Type** | M12 (12mm thread) | | **Gender** | Male | | **Coding** | A-Coded (Standard for sensors/DC power) | | **Number of Poles** | 4 or 5 Pins (Commonly 5) | | **Termination Type** | IDC (Insulation Displacement Connector) or Screw Terminal | | **Voltage Rating** | Up to 250V AC/DC | | **Current Rating** | 4A per contact | | **Protection Class** | IP67 (Dust tight, water immersion) | --- ### ### Key Electronic Components & Design #### 1. Contact Pins The pins are typically made of **Gold-plated Copper Alloy**. Gold plating is critical in industrial electronics to prevent oxidation and ensure low contact resistance over thousands of mating cycles. #### 2. Insulation Displacement Technology (IDC) The "-P" often signifies a specific termination style. In many industrial contexts, this indicates a "Quick-Connect" or "Push-In" system. * **No Soldering:** The wires are pressed into metal "V" shaped blades that pierce the insulation to make contact with the copper core. * **Vibration Resistance:** This creates a gas-tight connection that is more resistant to industrial vibration than standard screw terminals. #### 3. Shielding and Housing * **Housing Material:** Usually Polyamide (PA) or Zinc Die-Cast. * **EMI Protection:** While this specific model is often unshielded, the A-coding ensures it handles standard 24V DC signals for PLCs (Programmable Logic Controllers) without significant interference in low-frequency environments. --- ### ### Pinout Configuration (Standard A-Coded) If used for standard DC sensors, the electronic mapping usually follows this convention: 1. **Pin 1 (Brown):** +24V DC 2. **Pin 2 (White):** Input/Output 2 (Secondary signal) 3. **Pin 3 (Blue):** 0V / Ground 4. **Pin 4 (Black):** Input/Output 1 (Primary signal) 5. **Pin 5 (Gray):** Functional Earth/Shield (Optional) --- ### ### Typical Applications * **Factory Automation:** Connecting Proximity sensors and Photoelectric eyes to I/O blocks. * **Robotics:** End-of-arm tooling where space is limited and quick replacement is necessary. * **Fieldbus Systems:** Basic connectivity for DeviceNet or CANopen networks.