The part number **441-R347D-GR** refers to a high-quality **Illuminated Rocker Switch** typically manufactured by companies like **Mountain Switch** (distributed by Mouser and others). Below is a detailed breakdown of its electronic specifications and features. --- ### 1. General Specifications This switch is designed for high-current applications and features an internal lamp (usually neon) to indicate the "ON" status. | Property | Specification | | :--- | :--- | | **Switch Type** | Rocker Switch | | **Circuit Type** | SPST (Single Pole Single Throw) | | **Switch Function** | On-Off | | **Illumination** | Green Neon (125V) | | **Actuator Color** | Green Transparent | | **Body Color** | Black | --- ### 2. Electrical Ratings These ratings define the maximum voltage and current the switch can safely handle without overheating or electrical failure. * **AC Power Rating:** 16A at 125VAC / 10A at 250VAC. * **Insulation Resistance:** 100MΩ minimum (at 500VDC). * **Dielectric Strength:** 1500VAC for 1 minute. * **Contact Resistance:** 20mΩ maximum. --- ### 3. Physical & Mechanical Attributes The "GR" in the suffix usually denotes the Green color of the actuator. * **Mounting Type:** Panel Mount (Snap-in). * **Termination Style:** Quick Connect / Solder Terminals (0.250" or 6.3mm tabs). * **Operating Temperature:** Generally rated for -20°C to +85°C. * **Life Expectancy:** ~10,000 cycles (Electrical). --- ### 4. Terminal Identification Since this is an illuminated SPST switch, it typically features **3 terminals**: 1. **Terminal 1 (Line):** Incoming power (Hot). 2. **Terminal 2 (Load):** Output to the device being powered. 3. **Terminal 3 (Neutral/Ground):** Connected to the neutral line specifically to complete the circuit for the **internal green lamp**. --- ### 5. Application Use Cases * **Industrial Equipment:** Power control for machinery. * **Consumer Appliances:** Coffee makers, heaters, or power strips. * **Power Supplies:** Main power toggle for desktop units.