The **STD24Y-R** is a specific identification marker or label belonging to the **STD Series** manufactured by **TE Connectivity (Raychem)**. These are snap-on pre-printed cable markers used extensively in electrical engineering and industrial wiring for identification. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its physical and functional characteristics. | Feature | Specification | | :--- | :--- | | **Manufacturer** | TE Connectivity / Raychem | | **Series** | STD (Snap-on pre-printed markers) | | **Size Code** | 24 (Fits cable diameters 5.80mm to 8.50mm) | | **Color** | Yellow (Standard for high visibility) | | **Marking/Legend** | "R" (Uppercase letter) | | **Material** | Polyoxymethylene (POM / Acetal) | | **Operating Temperature** | -40°C to +106°C | --- ### 2. Physical Design Features The "STD" series is designed for ease of use in existing installations. * **Snap-on Mechanism:** The marker has a "C" shape profile. It can be applied to wires that are already terminated or connected, unlike heat-shrink tubing which must be slid on before termination. * **Grip Design:** It features a side-entry design with a high-grip internal profile that prevents the marker from rotating or sliding along the cable once installed. * **Interlocking System:** The edges are usually "v-shaped" or keyed, allowing multiple markers to lock together. This ensures that a sequence of characters (e.g., "R-1-A") remains aligned and readable. --- ### 3. Application Use Cases The **STD24Y-R** is used in environments where clear labeling is critical for safety and maintenance: 1. **Control Panels:** Labeling phases or specific signal lines (e.g., "R" for Right or a specific Phase). 2. **Telecommunications:** Identifying high-gauge trunk cables. 3. **Industrial Machinery:** Wire identification in harsh environments where vibration or heat might be present. 4. **Maintenance:** Retrofitting labels onto old wiring systems without disconnecting them. --- ### 4. Material Durability The use of **Polyoxymethylene (POM)** provides several advantages for electronic and industrial environments: * **Chemical Resistance:** Resistant to oils, cleaning agents, and fuels. * **UV Stability:** The yellow color and black legend are designed to resist fading. * **Mechanical Strength:** The "snap" tension remains consistent over time, ensuring the marker doesn't fall off due to aging.