The **W2PP-31YR-R2** is a specific industrial-grade control component, typically categorized as a **Selector Switch** or **Control Switch** used in automation panels and machinery interfaces. Below is the detailed breakdown of its electronic and mechanical specifications. --- ### 1. General Specifications The device is designed for pilot duty, meaning it is used to send signals to PLCs, contactors, or relays rather than powering heavy machinery directly. | Feature | Specification | | :--- | :--- | | **Component Type** | Selector Switch (Rotary) | | **Mounting Diameter** | 22mm / 30mm (Standard Industrial) | | **Operator Positions** | 3-Position | | **Operation Mode** | Maintained (Stays in position) or Spring Return | | **Contact Block Type** | N/O (Normally Open) / N/C (Normally Closed) | | **Illumination** | Non-Illuminated (standard for this series) | --- ### 2. Electrical Characteristics These parts are rated for industrial voltage levels to ensure reliability in high-interference environments. * **Rated Operational Voltage (Ue):** Generally rated up to **600V AC/DC**. * **Thermal Current (Ith):** Typically **10A**, allowing it to handle control circuit surges. * **Contact Resistance:** Low resistance (usually < 50mΩ) to ensure signal integrity for digital inputs. * **Insulation Resistance:** > 100MΩ at 500V DC. --- ### 3. Mechanical & Environmental Parts The "W2" and "R2" suffixes often denote specific physical configurations: 1. **Bezel/Housing:** Usually made of reinforced thermoplastic or chrome-plated zinc for durability. 2. **Contact Blocks:** The rear of the switch features stackable contact blocks. You can often add or remove blocks to change the circuit logic (e.g., adding more 1NO or 1NC contacts). 3. **Ingress Protection:** Rated at **IP65/66**, making it resistant to dust and low-pressure water jets, suitable for factory floors. 4. **Terminals:** Screw-clamp terminals are standard, designed for secure wire retention under vibration. --- ### 4. Circuit Functionality (3-Position) In a 3-position configuration like the W2PP-31YR-R2, the electronic logic usually follows this truth table: | Position | Left Contact | Right Contact | | :--- | :--- | :--- | | **Left (1)** | Closed | Open | | **Center (0)** | Open | Open | | **Right (2)** | Open | Closed | --- ### Summary of Part Number Breakdown * **W2/31:** Indicates the series and mounting style. * **YR:** Often refers to the handle type (e.g., Lever or Knob) and Color (Yellow/Red in some manufacturer codes). * **R2:** Typically denotes the specific contact arrangement (e.g., 2 Normally Open contacts).