The **M2TT-35-R2/N** is a specific model of an **industrial rotary switch** or selector switch, commonly utilized in control panels, automation systems, and machinery interfaces. It is designed for high reliability in manual switching operations. --- ### 1. Technical Specifications The following table outlines the primary electronic and mechanical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Type** | Rotary Selector Switch | | **Mounting Diameter** | 22mm / 30mm (standard industrial fit) | | **Contact Configuration** | Usually 1NO (Normally Open) + 1NC (Normally Closed) or 2NO | | **Positions** | 2-Position (90° throw) or 3-Position (45° throw) | | **Operation Mode** | Maintained (Stay-put) or Spring Return (Momentary) | | **Rated Voltage (Ui)** | 600V AC/DC | | **Thermal Current (Ith)** | 10A | | **Protection Rating** | IP65 / NEMA 4X (Water/Dust resistant) | --- ### 2. Key Electronic Parts & Construction The switch is modular, consisting of three primary sub-assemblies: #### A. The Operator (Head) * **Bezel:** Typically made of chrome-plated metal or high-grade plastic for durability. * **Knob:** The "R2" designation often refers to a standard short-handle lever. * **Cam Mechanism:** Inside the head, a cam translates the rotational motion into linear motion to actuate the contact blocks. #### B. The Latch/Bracket * This part connects the head to the contact blocks. It ensures a tight seal against the panel and holds the electronic components in alignment. #### C. Contact Blocks (The Electrical Interface) * **Contacts:** Made of silver alloy (AgNi or AgCdO) to provide low contact resistance and prevent oxidation. * **Terminals:** Screw-type terminals with "pressure plates" to securely hold wiring. * **Housing:** Usually made of flame-retardant polycarbonate. --- ### 3. Wiring Logic The electronic behavior depends on the position of the knob: ```mermaid graph LR A[Position: Left/Off] --> B[Contact 1: Closed / Contact 2: Open] C[Position: Right/On] --> D[Contact 1: Open / Contact 2: Closed] ``` * **Maintained Operation:** The switch stays in the position you turn it to. * **Momentary Operation:** The switch springs back to the center or original position when released. --- ### 4. Common Applications * **Power Sequencing:** Turning on control power for a machine. * **Mode Selection:** Switching a system between "Manual" and "Auto" modes. * **Direction Control:** Forward/Reverse selection for motors.