The **F2TS-21-R/BL** is a specific model of an illuminated power rocker switch, commonly manufactured by companies like **Canal Components** or **Salecom**. This part is widely used in power strips, computer peripherals, and industrial control panels. Below is a detailed breakdown of its electronic components and specifications. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Switch Type** | Rocker Switch (Power Control) | | **Circuitry** | DPST (Double Pole, Single Throw) | | **Current Rating** | 16A @ 125VAC / 250VAC | | **Illumination** | Red Neon or LED Lamp (Indicated by "/R") | | **Body Color** | Black (Indicated by "/BL") | | **Terminal Type** | Quick Connect / Solder Terminals (4-pin) | | **Life Cycle** | ~10,000 Operations (Electrical) | --- ### 2. Key Electronic Components The device consists of three primary internal mechanisms that allow it to function safely as a power interface: #### A. Contact Mechanism (Silver-Plated) The internal contacts are usually silver-alloy plated. This ensures low contact resistance and prevents "pitting" or carbon buildup when switching high-amperage loads. #### B. The DPST Circuit (Double Pole, Single Throw) As a DPST switch, it has **four terminals**. * It breaks both the **Live (L)** and **Neutral (N)** lines simultaneously. * This is a critical safety feature in high-voltage electronics to ensure the device is completely isolated from the power source when turned off. #### C. Illumination Circuit The "R" in the part number signifies a **Red** lens. * **Neon Lamp:** Most AC versions use a small neon bulb and a high-value current-limiting resistor inside the rocker. * **Function:** The lamp is wired internally across the output load pins, so it glows only when the switch is in the "ON" position. --- ### 3. Physical & Material Properties * **Housing:** Typically made of Nylon 66 (UL 94V-2 flame retardant grade). * **Actuator:** Polycarbonate (PC) for the transparent red lens. * **Mounting:** Snap-in design, requiring a rectangular cutout (approx. 22mm x 30mm for standard F2TS series). --- ### 4. Terminal Pinout Guide | Pin Number | Function | Connection | | :--- | :--- | :--- | | **1 & 2** | Input | Connect to AC Power Source (L & N) | | **1a & 2a** | Output | Connect to the Device/Load | ---