Based on industry standard numbering systems, the part number **1303040407** typically refers to a specific type of **circular connector cordset** or a specialized **industrial automation sensor cable**, often associated with brands like Molex (Brad Harrison) or similar industrial hardware manufacturers. --- ### 1. Technical Specifications The part number corresponds to a **Micro-Change (M12) Single-Ended Cordset**. Below are the general specifications associated with this series: | Feature | Description | | :--- | :--- | | **Connector Type** | M12 (Micro-Change) | | **Gender** | Female | | **Orientation** | Straight | | **Number of Poles** | 4-Pole | | **Cable Length** | Usually 2.0m to 5.0m (Part number suffix dependent) | | **Coupling Method** | Threaded (Internal Thread) | | **IP Rating** | IP67 (Dust tight, water immersion) | --- ### 2. Physical Components These electronic parts are comprised of four main structural elements: 1. **Contacts:** Usually made of gold-plated copper alloy to ensure high conductivity and resistance to oxidation. 2. **Insert:** A TPU (Thermoplastic Polyurethane) material that holds the pins in place and provides insulation. 3. **Coupling Nut:** A nickel-plated brass or stainless steel nut used to lock the connector onto a sensor or actuator. 4. **Cable Jacket:** Typically made of PVC or PUR, designed to withstand industrial environments, oils, and abrasion. --- ### 3. Pinout Configuration (Standard 4-Pole) In industrial automation, the 4-pole M12 connector follows a standard color-coding scheme: | Pin Number | Wire Color | Typical Function | | :--- | :--- | :--- | | 1 | Brown | +24V DC | | 2 | White | Input/Output 2 (Secondary) | | 3 | Blue | 0V / Common | | 4 | Black | Input/Output 1 (Primary) | --- ### 4. Common Applications * **Factory Automation:** Connecting Proximity sensors, Limit switches, and Photoelectric sensors to PLC input modules. * **Robotics:** Used in end-of-arm tooling where flexible cabling is required. * **Data Acquisition:** Connecting fieldbus modules (like IO-Link) to the main controller. ---