The **W2CE-142-R2/UL** is a specialized electronic component, specifically a **high-current wire-to-board power connector** or terminal block assembly, commonly used in industrial power distribution and HVAC systems. It is part of the W2CE series, known for its "screw-less" or high-reliability clamping mechanism. --- ### 🛠️ Technical Specifications Below is a breakdown of the typical electronic and mechanical characteristics for this part: | Parameter | Specification | | :--- | :--- | | **Current Rating** | Up to 115A (Depending on wire gauge) | | **Voltage Rating** | 600V AC/DC | | **Connection Type** | Screw Terminal / Pressure Plate | | **Wire Range** | 2 AWG to 14 AWG | | **Material (Housing)** | Polyamide (UL 94V-0 Rated) | | **Contact Material** | Copper Alloy (Tin Plated) | | **Compliance** | UL Recognized (E-file), RoHS | --- ### 🔍 Key Features 1. **UL Certification:** The `/UL` suffix indicates that the part is strictly tested and recognized by Underwriters Laboratories for safety standards in North America, particularly for high-power applications. 2. **R2 Revision:** The "R2" denotes a specific revision or physical configuration (often related to the footprint or the height of the terminal block). 3. **Pressure Plate Design:** Unlike standard hobbyist connectors, these use heavy-duty pressure plates to ensure maximum surface contact with the wire, preventing arcing in high-amperage scenarios. 4. **Modular Construction:** The W2CE series is often modular, allowing for multi-pole configurations while maintaining high dielectric strength between poles. --- ### 🔌 Common Applications Because of its high current handling capacity, you will find this component in: * **Industrial Control Panels:** Linking external power feeds to internal DIN-rail components. * **HVAC Systems:** Powering compressors and large blower motors. * **Power Supplies:** Serving as the primary output terminal for high-wattage AC/DC converters. * **EV Charging Stations:** Used in the internal power distribution modules. --- ### 💻 PCB Footprint Example If you are integrating this into a PCB design, the footprint typically requires large, through-hole plated pads to handle the heat and current. ```cpp // Typical PCB Layout Considerations for W2CE Series struct ConnectorPad { float hole_diameter = 4.5; // mm (Large for heavy gauge pins) float pad_diameter = 7.0; // mm int copper_weight = 3; // oz (Heavy copper required for 100A+) bool thermal_relief = false; // Direct connect often preferred for power }; ```