The part number **M2SBS-A14-R2/UL** refers to a high-quality, professional-grade **M12 Circular Connector**, typically manufactured by companies like **Amphenol** or **LTW**. These connectors are widely used in industrial automation, sensor technology, and robotics. --- ### 1. Technical Specifications Breakdown The alphanumeric code describes the physical and electrical characteristics of the part: | Feature | Specification | Description | | :--- | :--- | :--- | | **Series** | M12 (S-Series) | Standard 12mm metric thread connector. | | **Contact Type** | A-Coding | Standard for sensors, DC power, and 1G Ethernet. | | **Pin Count** | 4-Pin | Features four conductive pins/contacts. | | **Gender** | Male/Plug | Screw-thread male connector. | | **Material** | Nylon + GF / Metal | Typically glass-filled nylon housing with metal nuts. | | **Safety Rating** | UL Recognized | Certified for safety by Underwriters Laboratories. | --- ### 2. Key Electronic Components This assembly consists of several critical sub-parts designed for signal integrity and durability: * **Contacts (Pins):** Usually made of copper alloy with **gold plating**. Gold provides excellent conductivity and prevents oxidation in harsh environments. * **Insulator:** A plastic core (often PBT or Nylon) that keeps the four pins electrically isolated from each other to prevent short circuits. * **Coupling Nut:** A metal (nickel-plated brass) or plastic threaded ring used to lock the male and female ends together, providing vibration resistance. * **O-Ring/Gasket:** A rubber seal (NBR or Silicone) that ensures an **IP67/IP68** waterproof rating when mated. --- ### 3. Application Use-Cases The M12 A-coded 4-pin connector is the "workhorse" of the industrial world: 1. **Sensors & Actuators:** Connecting proximity switches, photoelectric sensors, and limit switches to a PLC. 2. **Fieldbus Wiring:** Used in DeviceNet, CANopen, and Profibus systems. 3. **DC Power:** Providing low-voltage power (typically 24V) to industrial hardware. 4. **Robotics:** Providing durable connections in arms that undergo constant movement. --- ### 4. Technical Drawing Overview If you were to look at the wiring diagram (Pinout) for an **A-Coded 4-pin** connector, it follows this standard: ```text Pin 1: Brown (+) Positive Supply Pin 2: White (I) Input/Output 2 Pin 3: Blue (-) Negative Supply Pin 4: Black (O) Input/Output 1 ``` ---