The **W2TS-223-R/N** is a specific model of an **Illuminated Selector Switch**, commonly used in industrial control panels, automation machinery, and electrical distribution boards. It is manufactured by brands like **Wandfluh** or similar industrial component suppliers (often associated with the "W2" series nomenclature). Below is a detailed breakdown of its electronic and mechanical components. --- ### 1. Technical Specifications The part number indicates specific characteristics regarding its operation, color, and contact configuration. | Feature | Specification | | :--- | :--- | | **Type** | 2-Position Selector Switch | | **Operation** | Maintained (Stay-put) or Spring Return (Depends on specific sub-variant) | | **Illumination** | LED Integrated | | **Mounting Diameter** | 22mm (Standard Industrial size) | | **Voltage Rating** | Typically 24V AC/DC or 110V/220V AC (Model dependent) | | **Contact Block** | 1 NO (Normally Open) + 1 NC (Normally Closed) or 2 NO | | **Color** | Red (indicated by the "R" in the suffix) | --- ### 2. Electronic & Mechanical Parts Breakdown The assembly consists of four primary sections that work together to complete an electrical circuit: #### A. The Operator (Actuator) The visible part on the front of the panel. * **Material:** Usually made of polycarbonate or chrome-plated plastic. * **Function:** Translates the physical twist of the user's hand into a mechanical rotation of the internal shaft. * **Ingress Protection:** Usually rated **IP65/IP66**, meaning it is protected against dust and water jets. #### B. The LED Lamp Module The "Illuminated" aspect of the part. * **Light Source:** High-visibility LED. * **Terminals:** Two dedicated terminals (X1 and X2) to power the light independently of the switch state. * **Circuitry:** Includes a built-in resistor or bridge rectifier to handle the specified input voltage. #### C. The Contact Blocks The actual electronic "switches" located at the back. * **NO (Normally Open):** Completes the circuit when the switch is turned. * **NC (Normally Closed):** Breaks the circuit when the switch is turned. * **Current Rating:** Typically rated for **5A to 10A** at thermal current ($I_{th}$). #### D. The Mounting Collar The mechanical bridge that locks the operator to the contact blocks through the 22mm panel hole. --- ### 3. Connection Diagram (Standard Logic) When wiring the W2TS-223-R/N, the terminals are generally labeled as follows: | Terminal Label | Function | Connection | | :--- | :--- | :--- | | **13 - 14** | NO Contact | Connected to the Load/PLC Input | | **21 - 22** | NC Contact | Connected to Emergency Stop or Feedback | | **X1 (+)** | LED Anode | Power for the internal Red light | | **X2 (-)** | LED Cathode | Common/Neutral for the light | --- ### 4. Application Use Cases * **Mode Selection:** Switching a machine between "Manual" and "Auto" modes. * **Status Indication:** The red light can be wired to turn on only when a fault occurs, or stay on to show the switch is active. * **Safety Interlocks:** Using the NC contact to ensure a secondary circuit is broken before a new one is energized. ---