The **M2UDS2-FW0-R2** is a specific model within the **IDEC TWND Series** of industrial control units. Specifically, it is a **30mm selector switch** designed for heavy-duty industrial environments. Below is a detailed breakdown of its electronic and mechanical parts. --- ### 1. Technical Specifications The M2UDS2-FW0-R2 belongs to the **M2 Series** (sub-category of the 30mm heavy-duty line) and features the following core specifications: | Component Feature | Specification Details | | :--- | :--- | | **Mounting Hole Size** | 30mm (Industrial standard) | | **Operator Type** | Selector Switch (Knob type) | | **Positions** | 2-Position (90° angle) | | **Function** | Maintained (Stays in the turned position) | | **Contact Configuration** | 2NO (Two Normally Open contacts) | | **Illumination** | Non-Illuminated | | **Bezel Material** | Metal (Durable Chrome finish) | --- ### 2. Breakdown of Electronic & Mechanical Parts The unit is modular, consisting of several key components that work together to complete an electrical circuit: #### A. The Operator (Knob) * **Handle:** A standard lever or "Wing Lever" style that provides the physical interface for the user. * **Mechanism:** A heavy-duty cam assembly that translates the rotational movement into linear movement to push the contact blocks. #### B. The Contact Blocks The "R2" suffix indicates the contact arrangement. * **Contact Type:** Silver contacts (Ag) for high conductivity and reliability. * **2NO Configuration:** This means there are two separate sets of contacts. In the "Off" position, the circuit is open. When turned to the "On" position, both circuits close simultaneously. * **Terminal Screws:** Uses M3.5 screws with captive wire clamps for secure electrical connection. #### C. The Mounting Hardware * **Locking Ring:** A metal ring that secures the switch to the control panel. * **Gasket:** A rubber seal that ensures the unit maintains its environmental rating (typically NEMA 4X, 13, and IP65). --- ### 3. Electrical Ratings The contact blocks used in the M2UDS2 series are rated for industrial power loads: | Parameter | Rating | | :--- | :--- | | **Insulation Voltage (Ui)** | 600V | | **Thermal Current (Ith)** | 10A | | **AC-15 (Inductive Load)** | 120V @ 6A / 240V @ 3A | | **DC-13 (Inductive Load)** | 125V @ 1.1A / 250V @ 0.55A | --- ### 4. Environmental & Protection Because this part is designed for factory floors and machinery, it includes: * **IP65 Protection:** Dust-tight and protected against water jets. * **Vibration Resistance:** High-tension spring mechanisms to prevent accidental state changes during machine vibration.